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<p class='location'>Struct Duration</p><div class="sidebar-elems"><div class="block items"><a class="sidebar-title" href="#methods">Methods</a><div class="sidebar-links"><a href="#method.weeks">weeks</a><a href="#method.days">days</a><a href="#method.hours">hours</a><a href="#method.minutes">minutes</a><a href="#method.seconds">seconds</a><a href="#method.milliseconds">milliseconds</a><a href="#method.microseconds">microseconds</a><a href="#method.nanoseconds">nanoseconds</a><a href="#method.span">span</a><a href="#method.num_weeks">num_weeks</a><a href="#method.num_days">num_days</a><a href="#method.num_hours">num_hours</a><a href="#method.num_minutes">num_minutes</a><a href="#method.num_seconds">num_seconds</a><a href="#method.num_milliseconds">num_milliseconds</a><a href="#method.num_microseconds">num_microseconds</a><a href="#method.num_nanoseconds">num_nanoseconds</a><a href="#method.checked_add">checked_add</a><a href="#method.checked_sub">checked_sub</a><a href="#method.min_value">min_value</a><a href="#method.max_value">max_value</a><a href="#method.zero">zero</a><a href="#method.is_zero">is_zero</a><a href="#method.from_std">from_std</a><a href="#method.to_std">to_std</a></div><a class="sidebar-title" href="#implementations">Trait Implementations</a><div class="sidebar-links"><a href="#impl-Sub%3CDuration%3E">Sub&lt;Duration&gt;</a><a href="#impl-PartialOrd%3CDuration%3E">PartialOrd&lt;Duration&gt;</a><a href="#impl-Mul%3Ci32%3E">Mul&lt;i32&gt;</a><a href="#impl-Debug">Debug</a><a href="#impl-Copy">Copy</a><a href="#impl-Clone">Clone</a><a href="#impl-Div%3Ci32%3E">Div&lt;i32&gt;</a><a href="#impl-Ord">Ord</a><a href="#impl-Eq">Eq</a><a href="#impl-Display">Display</a><a href="#impl-Add%3CDuration%3E">Add&lt;Duration&gt;</a><a href="#impl-PartialEq%3CDuration%3E">PartialEq&lt;Duration&gt;</a><a href="#impl-Neg">Neg</a><a href="#impl-Add%3COldDuration%3E">Add&lt;OldDuration&gt;</a><a href="#impl-AddAssign%3COldDuration%3E">AddAssign&lt;OldDuration&gt;</a><a href="#impl-Sub%3COldDuration%3E">Sub&lt;OldDuration&gt;</a><a href="#impl-SubAssign%3COldDuration%3E">SubAssign&lt;OldDuration&gt;</a></div></div><p class='location'><a href='index.html'>chrono</a></p><script>window.sidebarCurrent = {name: 'Duration', ty: 'struct', relpath: ''};</script><script defer src="sidebar-items.js"></script></div>
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<h1 class='fqn'><span class='in-band'>Struct <a href='index.html'>chrono</a>::<wbr><a class="struct" href=''>Duration</a></span><span class='out-of-band'><span id='render-detail'>
<a id="toggle-all-docs" href="javascript:void(0)" title="collapse all docs">
[<span class='inner'>&#x2212;</span>]
</a>
</span><a class='srclink' href='../src/time/duration.rs.html#45-48' title='goto source code'>[src]</a></span></h1>
<pre class='rust struct'>pub struct Duration { /* fields omitted */ }</pre><div class='docblock'><p>ISO 8601 time duration with nanosecond precision.
This also allows for the negative duration; see individual methods for details.</p>
</div>
<h2 id='methods' class='small-section-header'>
Methods<a href='#methods' class='anchor'></a>
</h2>
<h3 id='impl' class='impl'><span class='in-band'><code>impl <a class="struct" href="../chrono/struct.Duration.html" title="struct chrono::Duration">Duration</a></code><a href='#impl' class='anchor'></a></span><span class='out-of-band'><div class='ghost'></div><a class='srclink' href='../src/time/duration.rs.html#62-288' title='goto source code'>[src]</a></span></h3>
<div class='impl-items'><h4 id='method.weeks' class="method"><span id='weeks.v' class='invisible'><code>pub fn <a href='#method.weeks' class='fnname'>weeks</a>(weeks: <a class="primitive" href="https://doc.rust-lang.org/nightly/std/primitive.i64.html">i64</a>) -&gt; <a class="struct" href="../chrono/struct.Duration.html" title="struct chrono::Duration">Duration</a></code></span><span class='out-of-band'><div class='ghost'></div><a class='srclink' href='../src/time/duration.rs.html#67-70' title='goto source code'>[src]</a></span></h4>
<div class='docblock'><p>Makes a new <code>Duration</code> with given number of weeks.
Equivalent to <code>Duration::seconds(weeks * 7 * 24 * 60 * 60)</code> with overflow checks.
Panics when the duration is out of bounds.</p>
</div><h4 id='method.days' class="method"><span id='days.v' class='invisible'><code>pub fn <a href='#method.days' class='fnname'>days</a>(days: <a class="primitive" href="https://doc.rust-lang.org/nightly/std/primitive.i64.html">i64</a>) -&gt; <a class="struct" href="../chrono/struct.Duration.html" title="struct chrono::Duration">Duration</a></code></span><span class='out-of-band'><div class='ghost'></div><a class='srclink' href='../src/time/duration.rs.html#76-79' title='goto source code'>[src]</a></span></h4>
<div class='docblock'><p>Makes a new <code>Duration</code> with given number of days.
Equivalent to <code>Duration::seconds(days * 24 * 60 * 60)</code> with overflow checks.
Panics when the duration is out of bounds.</p>
</div><h4 id='method.hours' class="method"><span id='hours.v' class='invisible'><code>pub fn <a href='#method.hours' class='fnname'>hours</a>(hours: <a class="primitive" href="https://doc.rust-lang.org/nightly/std/primitive.i64.html">i64</a>) -&gt; <a class="struct" href="../chrono/struct.Duration.html" title="struct chrono::Duration">Duration</a></code></span><span class='out-of-band'><div class='ghost'></div><a class='srclink' href='../src/time/duration.rs.html#85-88' title='goto source code'>[src]</a></span></h4>
<div class='docblock'><p>Makes a new <code>Duration</code> with given number of hours.
Equivalent to <code>Duration::seconds(hours * 60 * 60)</code> with overflow checks.
Panics when the duration is out of bounds.</p>
</div><h4 id='method.minutes' class="method"><span id='minutes.v' class='invisible'><code>pub fn <a href='#method.minutes' class='fnname'>minutes</a>(minutes: <a class="primitive" href="https://doc.rust-lang.org/nightly/std/primitive.i64.html">i64</a>) -&gt; <a class="struct" href="../chrono/struct.Duration.html" title="struct chrono::Duration">Duration</a></code></span><span class='out-of-band'><div class='ghost'></div><a class='srclink' href='../src/time/duration.rs.html#94-97' title='goto source code'>[src]</a></span></h4>
<div class='docblock'><p>Makes a new <code>Duration</code> with given number of minutes.
Equivalent to <code>Duration::seconds(minutes * 60)</code> with overflow checks.
Panics when the duration is out of bounds.</p>
</div><h4 id='method.seconds' class="method"><span id='seconds.v' class='invisible'><code>pub fn <a href='#method.seconds' class='fnname'>seconds</a>(seconds: <a class="primitive" href="https://doc.rust-lang.org/nightly/std/primitive.i64.html">i64</a>) -&gt; <a class="struct" href="../chrono/struct.Duration.html" title="struct chrono::Duration">Duration</a></code></span><span class='out-of-band'><div class='ghost'></div><a class='srclink' href='../src/time/duration.rs.html#103-109' title='goto source code'>[src]</a></span></h4>
<div class='docblock'><p>Makes a new <code>Duration</code> with given number of seconds.
Panics when the duration is more than <code>i64::MAX</code> milliseconds
or less than <code>i64::MIN</code> milliseconds.</p>
</div><h4 id='method.milliseconds' class="method"><span id='milliseconds.v' class='invisible'><code>pub fn <a href='#method.milliseconds' class='fnname'>milliseconds</a>(milliseconds: <a class="primitive" href="https://doc.rust-lang.org/nightly/std/primitive.i64.html">i64</a>) -&gt; <a class="struct" href="../chrono/struct.Duration.html" title="struct chrono::Duration">Duration</a></code></span><span class='out-of-band'><div class='ghost'></div><a class='srclink' href='../src/time/duration.rs.html#113-117' title='goto source code'>[src]</a></span></h4>
<div class='docblock'><p>Makes a new <code>Duration</code> with given number of milliseconds.</p>
</div><h4 id='method.microseconds' class="method"><span id='microseconds.v' class='invisible'><code>pub fn <a href='#method.microseconds' class='fnname'>microseconds</a>(microseconds: <a class="primitive" href="https://doc.rust-lang.org/nightly/std/primitive.i64.html">i64</a>) -&gt; <a class="struct" href="../chrono/struct.Duration.html" title="struct chrono::Duration">Duration</a></code></span><span class='out-of-band'><div class='ghost'></div><a class='srclink' href='../src/time/duration.rs.html#121-125' title='goto source code'>[src]</a></span></h4>
<div class='docblock'><p>Makes a new <code>Duration</code> with given number of microseconds.</p>
</div><h4 id='method.nanoseconds' class="method"><span id='nanoseconds.v' class='invisible'><code>pub fn <a href='#method.nanoseconds' class='fnname'>nanoseconds</a>(nanos: <a class="primitive" href="https://doc.rust-lang.org/nightly/std/primitive.i64.html">i64</a>) -&gt; <a class="struct" href="../chrono/struct.Duration.html" title="struct chrono::Duration">Duration</a></code></span><span class='out-of-band'><div class='ghost'></div><a class='srclink' href='../src/time/duration.rs.html#129-132' title='goto source code'>[src]</a></span></h4>
<div class='docblock'><p>Makes a new <code>Duration</code> with given number of nanoseconds.</p>
</div><h4 id='method.span' class="method"><span id='span.v' class='invisible'><code>pub fn <a href='#method.span' class='fnname'>span</a>&lt;F&gt;(f: F) -&gt; <a class="struct" href="../chrono/struct.Duration.html" title="struct chrono::Duration">Duration</a> <span class="where fmt-newline">where<br>&nbsp;&nbsp;&nbsp;&nbsp;F: <a class="trait" href="https://doc.rust-lang.org/nightly/core/ops/function/trait.FnOnce.html" title="trait core::ops::function::FnOnce">FnOnce</a>(),&nbsp;</span></code></span><span class='out-of-band'><div class='ghost'></div><a class='srclink' href='../src/time/duration.rs.html#136-140' title='goto source code'>[src]</a></span></h4>
<div class='docblock'><p>Runs a closure, returning the duration of time it took to run the
closure.</p>
</div><h4 id='method.num_weeks' class="method"><span id='num_weeks.v' class='invisible'><code>pub fn <a href='#method.num_weeks' class='fnname'>num_weeks</a>(&amp;self) -&gt; <a class="primitive" href="https://doc.rust-lang.org/nightly/std/primitive.i64.html">i64</a></code></span><span class='out-of-band'><div class='ghost'></div><a class='srclink' href='../src/time/duration.rs.html#144-146' title='goto source code'>[src]</a></span></h4>
<div class='docblock'><p>Returns the total number of whole weeks in the duration.</p>
</div><h4 id='method.num_days' class="method"><span id='num_days.v' class='invisible'><code>pub fn <a href='#method.num_days' class='fnname'>num_days</a>(&amp;self) -&gt; <a class="primitive" href="https://doc.rust-lang.org/nightly/std/primitive.i64.html">i64</a></code></span><span class='out-of-band'><div class='ghost'></div><a class='srclink' href='../src/time/duration.rs.html#149-151' title='goto source code'>[src]</a></span></h4>
<div class='docblock'><p>Returns the total number of whole days in the duration.</p>
</div><h4 id='method.num_hours' class="method"><span id='num_hours.v' class='invisible'><code>pub fn <a href='#method.num_hours' class='fnname'>num_hours</a>(&amp;self) -&gt; <a class="primitive" href="https://doc.rust-lang.org/nightly/std/primitive.i64.html">i64</a></code></span><span class='out-of-band'><div class='ghost'></div><a class='srclink' href='../src/time/duration.rs.html#155-157' title='goto source code'>[src]</a></span></h4>
<div class='docblock'><p>Returns the total number of whole hours in the duration.</p>
</div><h4 id='method.num_minutes' class="method"><span id='num_minutes.v' class='invisible'><code>pub fn <a href='#method.num_minutes' class='fnname'>num_minutes</a>(&amp;self) -&gt; <a class="primitive" href="https://doc.rust-lang.org/nightly/std/primitive.i64.html">i64</a></code></span><span class='out-of-band'><div class='ghost'></div><a class='srclink' href='../src/time/duration.rs.html#161-163' title='goto source code'>[src]</a></span></h4>
<div class='docblock'><p>Returns the total number of whole minutes in the duration.</p>
</div><h4 id='method.num_seconds' class="method"><span id='num_seconds.v' class='invisible'><code>pub fn <a href='#method.num_seconds' class='fnname'>num_seconds</a>(&amp;self) -&gt; <a class="primitive" href="https://doc.rust-lang.org/nightly/std/primitive.i64.html">i64</a></code></span><span class='out-of-band'><div class='ghost'></div><a class='srclink' href='../src/time/duration.rs.html#166-173' title='goto source code'>[src]</a></span></h4>
<div class='docblock'><p>Returns the total number of whole seconds in the duration.</p>
</div><h4 id='method.num_milliseconds' class="method"><span id='num_milliseconds.v' class='invisible'><code>pub fn <a href='#method.num_milliseconds' class='fnname'>num_milliseconds</a>(&amp;self) -&gt; <a class="primitive" href="https://doc.rust-lang.org/nightly/std/primitive.i64.html">i64</a></code></span><span class='out-of-band'><div class='ghost'></div><a class='srclink' href='../src/time/duration.rs.html#187-193' title='goto source code'>[src]</a></span></h4>
<div class='docblock'><p>Returns the total number of whole milliseconds in the duration,</p>
</div><h4 id='method.num_microseconds' class="method"><span id='num_microseconds.v' class='invisible'><code>pub fn <a href='#method.num_microseconds' class='fnname'>num_microseconds</a>(&amp;self) -&gt; <a class="enum" href="https://doc.rust-lang.org/nightly/core/option/enum.Option.html" title="enum core::option::Option">Option</a>&lt;<a class="primitive" href="https://doc.rust-lang.org/nightly/std/primitive.i64.html">i64</a>&gt;</code></span><span class='out-of-band'><div class='ghost'></div><a class='srclink' href='../src/time/duration.rs.html#197-201' title='goto source code'>[src]</a></span></h4>
<div class='docblock'><p>Returns the total number of whole microseconds in the duration,
or <code>None</code> on overflow (exceeding 2<sup>63</sup> microseconds in either direction).</p>
</div><h4 id='method.num_nanoseconds' class="method"><span id='num_nanoseconds.v' class='invisible'><code>pub fn <a href='#method.num_nanoseconds' class='fnname'>num_nanoseconds</a>(&amp;self) -&gt; <a class="enum" href="https://doc.rust-lang.org/nightly/core/option/enum.Option.html" title="enum core::option::Option">Option</a>&lt;<a class="primitive" href="https://doc.rust-lang.org/nightly/std/primitive.i64.html">i64</a>&gt;</code></span><span class='out-of-band'><div class='ghost'></div><a class='srclink' href='../src/time/duration.rs.html#205-209' title='goto source code'>[src]</a></span></h4>
<div class='docblock'><p>Returns the total number of whole nanoseconds in the duration,
or <code>None</code> on overflow (exceeding 2<sup>63</sup> nanoseconds in either direction).</p>
</div><h4 id='method.checked_add' class="method"><span id='checked_add.v' class='invisible'><code>pub fn <a href='#method.checked_add' class='fnname'>checked_add</a>(&amp;self, rhs: &amp;<a class="struct" href="../chrono/struct.Duration.html" title="struct chrono::Duration">Duration</a>) -&gt; <a class="enum" href="https://doc.rust-lang.org/nightly/core/option/enum.Option.html" title="enum core::option::Option">Option</a>&lt;<a class="struct" href="../chrono/struct.Duration.html" title="struct chrono::Duration">Duration</a>&gt;</code></span><span class='out-of-band'><div class='ghost'></div><a class='srclink' href='../src/time/duration.rs.html#212-223' title='goto source code'>[src]</a></span></h4>
<div class='docblock'><p>Add two durations, returning <code>None</code> if overflow occurred.</p>
</div><h4 id='method.checked_sub' class="method"><span id='checked_sub.v' class='invisible'><code>pub fn <a href='#method.checked_sub' class='fnname'>checked_sub</a>(&amp;self, rhs: &amp;<a class="struct" href="../chrono/struct.Duration.html" title="struct chrono::Duration">Duration</a>) -&gt; <a class="enum" href="https://doc.rust-lang.org/nightly/core/option/enum.Option.html" title="enum core::option::Option">Option</a>&lt;<a class="struct" href="../chrono/struct.Duration.html" title="struct chrono::Duration">Duration</a>&gt;</code></span><span class='out-of-band'><div class='ghost'></div><a class='srclink' href='../src/time/duration.rs.html#226-237' title='goto source code'>[src]</a></span></h4>
<div class='docblock'><p>Subtract two durations, returning <code>None</code> if overflow occurred.</p>
</div><h4 id='method.min_value' class="method"><span id='min_value.v' class='invisible'><code>pub fn <a href='#method.min_value' class='fnname'>min_value</a>() -&gt; <a class="struct" href="../chrono/struct.Duration.html" title="struct chrono::Duration">Duration</a></code></span><span class='out-of-band'><div class='ghost'></div><a class='srclink' href='../src/time/duration.rs.html#241' title='goto source code'>[src]</a></span></h4>
<div class='docblock'><p>The minimum possible <code>Duration</code>: <code>i64::MIN</code> milliseconds.</p>
</div><h4 id='method.max_value' class="method"><span id='max_value.v' class='invisible'><code>pub fn <a href='#method.max_value' class='fnname'>max_value</a>() -&gt; <a class="struct" href="../chrono/struct.Duration.html" title="struct chrono::Duration">Duration</a></code></span><span class='out-of-band'><div class='ghost'></div><a class='srclink' href='../src/time/duration.rs.html#245' title='goto source code'>[src]</a></span></h4>
<div class='docblock'><p>The maximum possible <code>Duration</code>: <code>i64::MAX</code> milliseconds.</p>
</div><h4 id='method.zero' class="method"><span id='zero.v' class='invisible'><code>pub fn <a href='#method.zero' class='fnname'>zero</a>() -&gt; <a class="struct" href="../chrono/struct.Duration.html" title="struct chrono::Duration">Duration</a></code></span><span class='out-of-band'><div class='ghost'></div><a class='srclink' href='../src/time/duration.rs.html#249-251' title='goto source code'>[src]</a></span></h4>
<div class='docblock'><p>A duration where the stored seconds and nanoseconds are equal to zero.</p>
</div><h4 id='method.is_zero' class="method"><span id='is_zero.v' class='invisible'><code>pub fn <a href='#method.is_zero' class='fnname'>is_zero</a>(&amp;self) -&gt; <a class="primitive" href="https://doc.rust-lang.org/nightly/std/primitive.bool.html">bool</a></code></span><span class='out-of-band'><div class='ghost'></div><a class='srclink' href='../src/time/duration.rs.html#255-257' title='goto source code'>[src]</a></span></h4>
<div class='docblock'><p>Returns <code>true</code> if the duration equals <code>Duration::zero()</code>.</p>
</div><h4 id='method.from_std' class="method"><span id='from_std.v' class='invisible'><code>pub fn <a href='#method.from_std' class='fnname'>from_std</a>(duration: <a class="struct" href="https://doc.rust-lang.org/nightly/core/time/struct.Duration.html" title="struct core::time::Duration">Duration</a>) -&gt; <a class="enum" href="https://doc.rust-lang.org/nightly/core/result/enum.Result.html" title="enum core::result::Result">Result</a>&lt;<a class="struct" href="../chrono/struct.Duration.html" title="struct chrono::Duration">Duration</a>, <a class="struct" href="../time/duration/struct.OutOfRangeError.html" title="struct time::duration::OutOfRangeError">OutOfRangeError</a>&gt;</code></span><span class='out-of-band'><div class='ghost'></div><a class='srclink' href='../src/time/duration.rs.html#263-276' title='goto source code'>[src]</a></span></h4>
<div class='docblock'><p>Creates a <code>time::Duration</code> object from <code>std::time::Duration</code></p>
<p>This function errors when original duration is larger than the maximum
value supported for this type.</p>
</div><h4 id='method.to_std' class="method"><span id='to_std.v' class='invisible'><code>pub fn <a href='#method.to_std' class='fnname'>to_std</a>(&amp;self) -&gt; <a class="enum" href="https://doc.rust-lang.org/nightly/core/result/enum.Result.html" title="enum core::result::Result">Result</a>&lt;<a class="struct" href="https://doc.rust-lang.org/nightly/core/time/struct.Duration.html" title="struct core::time::Duration">Duration</a>, <a class="struct" href="../time/duration/struct.OutOfRangeError.html" title="struct time::duration::OutOfRangeError">OutOfRangeError</a>&gt;</code></span><span class='out-of-band'><div class='ghost'></div><a class='srclink' href='../src/time/duration.rs.html#282-287' title='goto source code'>[src]</a></span></h4>
<div class='docblock'><p>Creates a <code>std::time::Duration</code> object from <code>time::Duration</code></p>
<p>This function errors when duration is less than zero. As standard
library implementation is limited to non-negative values.</p>
</div></div>
<h2 id='implementations' class='small-section-header'>
Trait Implementations<a href='#implementations' class='anchor'></a>
</h2>
<h3 id='impl-Sub%3CDuration%3E' class='impl'><span class='in-band'><code>impl <a class="trait" href="https://doc.rust-lang.org/nightly/core/ops/arith/trait.Sub.html" title="trait core::ops::arith::Sub">Sub</a>&lt;<a class="struct" href="../chrono/struct.Duration.html" title="struct chrono::Duration">Duration</a>&gt; for <a class="struct" href="../time/struct.SteadyTime.html" title="struct time::SteadyTime">SteadyTime</a></code><a href='#impl-Sub%3CDuration%3E' class='anchor'></a></span><span class='out-of-band'><div class='ghost'></div><a class='srclink' href='../src/time/lib.rs.html#267-273' title='goto source code'>[src]</a></span></h3>
<div class='impl-items'><h4 id='associatedtype.Output' class="type"><span id='Output.t' class='invisible'><code>type <a href='https://doc.rust-lang.org/nightly/core/ops/arith/trait.Sub.html#associatedtype.Output' class="type">Output</a> = <a class="struct" href="../time/struct.SteadyTime.html" title="struct time::SteadyTime">SteadyTime</a></code></span></h4>
<div class='docblock'><p>The resulting type after applying the <code>-</code> operator.</p>
</div><h4 id='method.sub' class="method"><span id='sub.v' class='invisible'><code>fn <a href='https://doc.rust-lang.org/nightly/core/ops/arith/trait.Sub.html#tymethod.sub' class='fnname'>sub</a>(self, other: <a class="struct" href="../chrono/struct.Duration.html" title="struct chrono::Duration">Duration</a>) -&gt; <a class="struct" href="../time/struct.SteadyTime.html" title="struct time::SteadyTime">SteadyTime</a></code></span><span class='out-of-band'><div class='ghost'></div><a class='srclink' href='../src/time/lib.rs.html#270-272' title='goto source code'>[src]</a></span></h4>
<div class='docblock'><p>Performs the <code>-</code> operation.</p>
</div></div><h3 id='impl-Sub%3CDuration%3E-1' class='impl'><span class='in-band'><code>impl <a class="trait" href="https://doc.rust-lang.org/nightly/core/ops/arith/trait.Sub.html" title="trait core::ops::arith::Sub">Sub</a>&lt;<a class="struct" href="../chrono/struct.Duration.html" title="struct chrono::Duration">Duration</a>&gt; for <a class="struct" href="../time/struct.Timespec.html" title="struct time::Timespec">Timespec</a></code><a href='#impl-Sub%3CDuration%3E-1' class='anchor'></a></span><span class='out-of-band'><div class='ghost'></div><a class='srclink' href='../src/time/lib.rs.html#113-133' title='goto source code'>[src]</a></span></h3>
<div class='impl-items'><h4 id='associatedtype.Output-1' class="type"><span id='Output.t-1' class='invisible'><code>type <a href='https://doc.rust-lang.org/nightly/core/ops/arith/trait.Sub.html#associatedtype.Output' class="type">Output</a> = <a class="struct" href="../time/struct.Timespec.html" title="struct time::Timespec">Timespec</a></code></span></h4>
<div class='docblock'><p>The resulting type after applying the <code>-</code> operator.</p>
</div><h4 id='method.sub-1' class="method"><span id='sub.v-1' class='invisible'><code>fn <a href='https://doc.rust-lang.org/nightly/core/ops/arith/trait.Sub.html#tymethod.sub' class='fnname'>sub</a>(self, other: <a class="struct" href="../chrono/struct.Duration.html" title="struct chrono::Duration">Duration</a>) -&gt; <a class="struct" href="../time/struct.Timespec.html" title="struct time::Timespec">Timespec</a></code></span><span class='out-of-band'><div class='ghost'></div><a class='srclink' href='../src/time/lib.rs.html#116-132' title='goto source code'>[src]</a></span></h4>
<div class='docblock'><p>Performs the <code>-</code> operation.</p>
</div></div><h3 id='impl-Sub%3CDuration%3E-2' class='impl'><span class='in-band'><code>impl <a class="trait" href="https://doc.rust-lang.org/nightly/core/ops/arith/trait.Sub.html" title="trait core::ops::arith::Sub">Sub</a>&lt;<a class="struct" href="../chrono/struct.Duration.html" title="struct chrono::Duration">Duration</a>&gt; for <a class="struct" href="../time/struct.Tm.html" title="struct time::Tm">Tm</a></code><a href='#impl-Sub%3CDuration%3E-2' class='anchor'></a></span><span class='out-of-band'><div class='ghost'></div><a class='srclink' href='../src/time/lib.rs.html#353-363' title='goto source code'>[src]</a></span></h3>
<div class='impl-items'><h4 id='associatedtype.Output-2' class="type"><span id='Output.t-2' class='invisible'><code>type <a href='https://doc.rust-lang.org/nightly/core/ops/arith/trait.Sub.html#associatedtype.Output' class="type">Output</a> = <a class="struct" href="../time/struct.Tm.html" title="struct time::Tm">Tm</a></code></span></h4>
<div class='docblock'><p>The resulting type after applying the <code>-</code> operator.</p>
</div><h4 id='method.sub-2' class="method"><span id='sub.v-2' class='invisible'><code>fn <a href='https://doc.rust-lang.org/nightly/core/ops/arith/trait.Sub.html#tymethod.sub' class='fnname'>sub</a>(self, other: <a class="struct" href="../chrono/struct.Duration.html" title="struct chrono::Duration">Duration</a>) -&gt; <a class="struct" href="../time/struct.Tm.html" title="struct time::Tm">Tm</a></code></span><span class='out-of-band'><div class='ghost'></div><a class='srclink' href='../src/time/lib.rs.html#360-362' title='goto source code'>[src]</a></span></h4>
<div class='docblock'><p>The resulting Tm is in UTC.</p>
</div></div><h3 id='impl-Sub%3CDuration%3E-3' class='impl'><span class='in-band'><code>impl <a class="trait" href="https://doc.rust-lang.org/nightly/core/ops/arith/trait.Sub.html" title="trait core::ops::arith::Sub">Sub</a>&lt;<a class="struct" href="../chrono/struct.Duration.html" title="struct chrono::Duration">Duration</a>&gt; for <a class="struct" href="../chrono/struct.Duration.html" title="struct chrono::Duration">Duration</a></code><a href='#impl-Sub%3CDuration%3E-3' class='anchor'></a></span><span class='out-of-band'><div class='ghost'></div><a class='srclink' href='../src/time/duration.rs.html#317-329' title='goto source code'>[src]</a></span></h3>
<div class='impl-items'><h4 id='associatedtype.Output-3' class="type"><span id='Output.t-3' class='invisible'><code>type <a href='https://doc.rust-lang.org/nightly/core/ops/arith/trait.Sub.html#associatedtype.Output' class="type">Output</a> = <a class="struct" href="../chrono/struct.Duration.html" title="struct chrono::Duration">Duration</a></code></span></h4>
<div class='docblock'><p>The resulting type after applying the <code>-</code> operator.</p>
</div><h4 id='method.sub-3' class="method"><span id='sub.v-3' class='invisible'><code>fn <a href='https://doc.rust-lang.org/nightly/core/ops/arith/trait.Sub.html#tymethod.sub' class='fnname'>sub</a>(self, rhs: <a class="struct" href="../chrono/struct.Duration.html" title="struct chrono::Duration">Duration</a>) -&gt; <a class="struct" href="../chrono/struct.Duration.html" title="struct chrono::Duration">Duration</a></code></span><span class='out-of-band'><div class='ghost'></div><a class='srclink' href='../src/time/duration.rs.html#320-328' title='goto source code'>[src]</a></span></h4>
<div class='docblock'><p>Performs the <code>-</code> operation.</p>
</div></div><h3 id='impl-PartialOrd%3CDuration%3E' class='impl'><span class='in-band'><code>impl <a class="trait" href="https://doc.rust-lang.org/nightly/core/cmp/trait.PartialOrd.html" title="trait core::cmp::PartialOrd">PartialOrd</a>&lt;<a class="struct" href="../chrono/struct.Duration.html" title="struct chrono::Duration">Duration</a>&gt; for <a class="struct" href="../chrono/struct.Duration.html" title="struct chrono::Duration">Duration</a></code><a href='#impl-PartialOrd%3CDuration%3E' class='anchor'></a></span><span class='out-of-band'><div class='ghost'></div><a class='srclink' href='../src/time/duration.rs.html#44' title='goto source code'>[src]</a></span></h3>
<div class='impl-items'><h4 id='method.partial_cmp' class="method"><span id='partial_cmp.v' class='invisible'><code>fn <a href='https://doc.rust-lang.org/nightly/core/cmp/trait.PartialOrd.html#tymethod.partial_cmp' class='fnname'>partial_cmp</a>(&amp;self, __arg_0: &amp;<a class="struct" href="../chrono/struct.Duration.html" title="struct chrono::Duration">Duration</a>) -&gt; <a class="enum" href="https://doc.rust-lang.org/nightly/core/option/enum.Option.html" title="enum core::option::Option">Option</a>&lt;<a class="enum" href="https://doc.rust-lang.org/nightly/core/cmp/enum.Ordering.html" title="enum core::cmp::Ordering">Ordering</a>&gt;</code></span><span class='out-of-band'><div class='ghost'></div><a class='srclink' href='../src/time/duration.rs.html#44' title='goto source code'>[src]</a></span></h4>
<div class='docblock'><p>This method returns an ordering between <code>self</code> and <code>other</code> values if one exists. <a href="https://doc.rust-lang.org/nightly/core/cmp/trait.PartialOrd.html#tymethod.partial_cmp">Read more</a></p>
</div><h4 id='method.lt' class="method"><span id='lt.v' class='invisible'><code>fn <a href='https://doc.rust-lang.org/nightly/core/cmp/trait.PartialOrd.html#method.lt' class='fnname'>lt</a>(&amp;self, __arg_0: &amp;<a class="struct" href="../chrono/struct.Duration.html" title="struct chrono::Duration">Duration</a>) -&gt; <a class="primitive" href="https://doc.rust-lang.org/nightly/std/primitive.bool.html">bool</a></code></span><span class='out-of-band'><div class='ghost'></div><a class='srclink' href='../src/time/duration.rs.html#44' title='goto source code'>[src]</a></span></h4>
<div class='docblock'><p>This method tests less than (for <code>self</code> and <code>other</code>) and is used by the <code>&lt;</code> operator. <a href="https://doc.rust-lang.org/nightly/core/cmp/trait.PartialOrd.html#method.lt">Read more</a></p>
</div><h4 id='method.le' class="method"><span id='le.v' class='invisible'><code>fn <a href='https://doc.rust-lang.org/nightly/core/cmp/trait.PartialOrd.html#method.le' class='fnname'>le</a>(&amp;self, __arg_0: &amp;<a class="struct" href="../chrono/struct.Duration.html" title="struct chrono::Duration">Duration</a>) -&gt; <a class="primitive" href="https://doc.rust-lang.org/nightly/std/primitive.bool.html">bool</a></code></span><span class='out-of-band'><div class='ghost'></div><a class='srclink' href='../src/time/duration.rs.html#44' title='goto source code'>[src]</a></span></h4>
<div class='docblock'><p>This method tests less than or equal to (for <code>self</code> and <code>other</code>) and is used by the <code>&lt;=</code> operator. <a href="https://doc.rust-lang.org/nightly/core/cmp/trait.PartialOrd.html#method.le">Read more</a></p>
</div><h4 id='method.gt' class="method"><span id='gt.v' class='invisible'><code>fn <a href='https://doc.rust-lang.org/nightly/core/cmp/trait.PartialOrd.html#method.gt' class='fnname'>gt</a>(&amp;self, __arg_0: &amp;<a class="struct" href="../chrono/struct.Duration.html" title="struct chrono::Duration">Duration</a>) -&gt; <a class="primitive" href="https://doc.rust-lang.org/nightly/std/primitive.bool.html">bool</a></code></span><span class='out-of-band'><div class='ghost'></div><a class='srclink' href='../src/time/duration.rs.html#44' title='goto source code'>[src]</a></span></h4>
<div class='docblock'><p>This method tests greater than (for <code>self</code> and <code>other</code>) and is used by the <code>&gt;</code> operator. <a href="https://doc.rust-lang.org/nightly/core/cmp/trait.PartialOrd.html#method.gt">Read more</a></p>
</div><h4 id='method.ge' class="method"><span id='ge.v' class='invisible'><code>fn <a href='https://doc.rust-lang.org/nightly/core/cmp/trait.PartialOrd.html#method.ge' class='fnname'>ge</a>(&amp;self, __arg_0: &amp;<a class="struct" href="../chrono/struct.Duration.html" title="struct chrono::Duration">Duration</a>) -&gt; <a class="primitive" href="https://doc.rust-lang.org/nightly/std/primitive.bool.html">bool</a></code></span><span class='out-of-band'><div class='ghost'></div><a class='srclink' href='../src/time/duration.rs.html#44' title='goto source code'>[src]</a></span></h4>
<div class='docblock'><p>This method tests greater than or equal to (for <code>self</code> and <code>other</code>) and is used by the <code>&gt;=</code> operator. <a href="https://doc.rust-lang.org/nightly/core/cmp/trait.PartialOrd.html#method.ge">Read more</a></p>
</div></div><h3 id='impl-Mul%3Ci32%3E' class='impl'><span class='in-band'><code>impl <a class="trait" href="https://doc.rust-lang.org/nightly/core/ops/arith/trait.Mul.html" title="trait core::ops::arith::Mul">Mul</a>&lt;<a class="primitive" href="https://doc.rust-lang.org/nightly/std/primitive.i32.html">i32</a>&gt; for <a class="struct" href="../chrono/struct.Duration.html" title="struct chrono::Duration">Duration</a></code><a href='#impl-Mul%3Ci32%3E' class='anchor'></a></span><span class='out-of-band'><div class='ghost'></div><a class='srclink' href='../src/time/duration.rs.html#331-341' title='goto source code'>[src]</a></span></h3>
<div class='impl-items'><h4 id='associatedtype.Output-4' class="type"><span id='Output.t-4' class='invisible'><code>type <a href='https://doc.rust-lang.org/nightly/core/ops/arith/trait.Mul.html#associatedtype.Output' class="type">Output</a> = <a class="struct" href="../chrono/struct.Duration.html" title="struct chrono::Duration">Duration</a></code></span></h4>
<div class='docblock'><p>The resulting type after applying the <code>*</code> operator.</p>
</div><h4 id='method.mul' class="method"><span id='mul.v' class='invisible'><code>fn <a href='https://doc.rust-lang.org/nightly/core/ops/arith/trait.Mul.html#tymethod.mul' class='fnname'>mul</a>(self, rhs: <a class="primitive" href="https://doc.rust-lang.org/nightly/std/primitive.i32.html">i32</a>) -&gt; <a class="struct" href="../chrono/struct.Duration.html" title="struct chrono::Duration">Duration</a></code></span><span class='out-of-band'><div class='ghost'></div><a class='srclink' href='../src/time/duration.rs.html#334-340' title='goto source code'>[src]</a></span></h4>
<div class='docblock'><p>Performs the <code>*</code> operation.</p>
</div></div><h3 id='impl-Debug' class='impl'><span class='in-band'><code>impl <a class="trait" href="https://doc.rust-lang.org/nightly/core/fmt/trait.Debug.html" title="trait core::fmt::Debug">Debug</a> for <a class="struct" href="../chrono/struct.Duration.html" title="struct chrono::Duration">Duration</a></code><a href='#impl-Debug' class='anchor'></a></span><span class='out-of-band'><div class='ghost'></div><a class='srclink' href='../src/time/duration.rs.html#44' title='goto source code'>[src]</a></span></h3>
<div class='impl-items'><h4 id='method.fmt' class="method"><span id='fmt.v' class='invisible'><code>fn <a href='https://doc.rust-lang.org/nightly/core/fmt/trait.Debug.html#tymethod.fmt' class='fnname'>fmt</a>(&amp;self, __arg_0: &amp;mut <a class="struct" href="https://doc.rust-lang.org/nightly/core/fmt/struct.Formatter.html" title="struct core::fmt::Formatter">Formatter</a>) -&gt; <a class="enum" href="https://doc.rust-lang.org/nightly/core/result/enum.Result.html" title="enum core::result::Result">Result</a>&lt;<a class="primitive" href="https://doc.rust-lang.org/nightly/std/primitive.unit.html">()</a>, <a class="struct" href="https://doc.rust-lang.org/nightly/core/fmt/struct.Error.html" title="struct core::fmt::Error">Error</a>&gt;</code></span><span class='out-of-band'><div class='ghost'></div><a class='srclink' href='../src/time/duration.rs.html#44' title='goto source code'>[src]</a></span></h4>
<div class='docblock'><p>Formats the value using the given formatter. <a href="https://doc.rust-lang.org/nightly/core/fmt/trait.Debug.html#tymethod.fmt">Read more</a></p>
</div></div><h3 id='impl-Copy' class='impl'><span class='in-band'><code>impl <a class="trait" href="https://doc.rust-lang.org/nightly/core/marker/trait.Copy.html" title="trait core::marker::Copy">Copy</a> for <a class="struct" href="../chrono/struct.Duration.html" title="struct chrono::Duration">Duration</a></code><a href='#impl-Copy' class='anchor'></a></span><span class='out-of-band'><div class='ghost'></div><a class='srclink' href='../src/time/duration.rs.html#44' title='goto source code'>[src]</a></span></h3>
<div class='impl-items'></div><h3 id='impl-Clone' class='impl'><span class='in-band'><code>impl <a class="trait" href="https://doc.rust-lang.org/nightly/core/clone/trait.Clone.html" title="trait core::clone::Clone">Clone</a> for <a class="struct" href="../chrono/struct.Duration.html" title="struct chrono::Duration">Duration</a></code><a href='#impl-Clone' class='anchor'></a></span><span class='out-of-band'><div class='ghost'></div><a class='srclink' href='../src/time/duration.rs.html#44' title='goto source code'>[src]</a></span></h3>
<div class='impl-items'><h4 id='method.clone' class="method"><span id='clone.v' class='invisible'><code>fn <a href='https://doc.rust-lang.org/nightly/core/clone/trait.Clone.html#tymethod.clone' class='fnname'>clone</a>(&amp;self) -&gt; <a class="struct" href="../chrono/struct.Duration.html" title="struct chrono::Duration">Duration</a></code></span><span class='out-of-band'><div class='ghost'></div><a class='srclink' href='../src/time/duration.rs.html#44' title='goto source code'>[src]</a></span></h4>
<div class='docblock'><p>Returns a copy of the value. <a href="https://doc.rust-lang.org/nightly/core/clone/trait.Clone.html#tymethod.clone">Read more</a></p>
</div><h4 id='method.clone_from' class="method"><span id='clone_from.v' class='invisible'><code>fn <a href='https://doc.rust-lang.org/nightly/core/clone/trait.Clone.html#method.clone_from' class='fnname'>clone_from</a>(&amp;mut self, source: <a class="primitive" href="https://doc.rust-lang.org/nightly/std/primitive.reference.html">&amp;</a>Self)</code></span><span class='out-of-band'><div class='ghost'></div><div class='since' title='Stable since Rust version 1.0.0'>1.0.0</div><a class='srclink' href='https://doc.rust-lang.org/nightly/src/core/clone.rs.html#112-114' title='goto source code'>[src]</a></span></h4>
<div class='docblock'><p>Performs copy-assignment from <code>source</code>. <a href="https://doc.rust-lang.org/nightly/core/clone/trait.Clone.html#method.clone_from">Read more</a></p>
</div></div><h3 id='impl-Div%3Ci32%3E' class='impl'><span class='in-band'><code>impl <a class="trait" href="https://doc.rust-lang.org/nightly/core/ops/arith/trait.Div.html" title="trait core::ops::arith::Div">Div</a>&lt;<a class="primitive" href="https://doc.rust-lang.org/nightly/std/primitive.i32.html">i32</a>&gt; for <a class="struct" href="../chrono/struct.Duration.html" title="struct chrono::Duration">Duration</a></code><a href='#impl-Div%3Ci32%3E' class='anchor'></a></span><span class='out-of-band'><div class='ghost'></div><a class='srclink' href='../src/time/duration.rs.html#343-361' title='goto source code'>[src]</a></span></h3>
<div class='impl-items'><h4 id='associatedtype.Output-5' class="type"><span id='Output.t-5' class='invisible'><code>type <a href='https://doc.rust-lang.org/nightly/core/ops/arith/trait.Div.html#associatedtype.Output' class="type">Output</a> = <a class="struct" href="../chrono/struct.Duration.html" title="struct chrono::Duration">Duration</a></code></span></h4>
<div class='docblock'><p>The resulting type after applying the <code>/</code> operator.</p>
</div><h4 id='method.div' class="method"><span id='div.v' class='invisible'><code>fn <a href='https://doc.rust-lang.org/nightly/core/ops/arith/trait.Div.html#tymethod.div' class='fnname'>div</a>(self, rhs: <a class="primitive" href="https://doc.rust-lang.org/nightly/std/primitive.i32.html">i32</a>) -&gt; <a class="struct" href="../chrono/struct.Duration.html" title="struct chrono::Duration">Duration</a></code></span><span class='out-of-band'><div class='ghost'></div><a class='srclink' href='../src/time/duration.rs.html#346-360' title='goto source code'>[src]</a></span></h4>
<div class='docblock'><p>Performs the <code>/</code> operation.</p>
</div></div><h3 id='impl-Ord' class='impl'><span class='in-band'><code>impl <a class="trait" href="https://doc.rust-lang.org/nightly/core/cmp/trait.Ord.html" title="trait core::cmp::Ord">Ord</a> for <a class="struct" href="../chrono/struct.Duration.html" title="struct chrono::Duration">Duration</a></code><a href='#impl-Ord' class='anchor'></a></span><span class='out-of-band'><div class='ghost'></div><a class='srclink' href='../src/time/duration.rs.html#44' title='goto source code'>[src]</a></span></h3>
<div class='impl-items'><h4 id='method.cmp' class="method"><span id='cmp.v' class='invisible'><code>fn <a href='https://doc.rust-lang.org/nightly/core/cmp/trait.Ord.html#tymethod.cmp' class='fnname'>cmp</a>(&amp;self, __arg_0: &amp;<a class="struct" href="../chrono/struct.Duration.html" title="struct chrono::Duration">Duration</a>) -&gt; <a class="enum" href="https://doc.rust-lang.org/nightly/core/cmp/enum.Ordering.html" title="enum core::cmp::Ordering">Ordering</a></code></span><span class='out-of-band'><div class='ghost'></div><a class='srclink' href='../src/time/duration.rs.html#44' title='goto source code'>[src]</a></span></h4>
<div class='docblock'><p>This method returns an <code>Ordering</code> between <code>self</code> and <code>other</code>. <a href="https://doc.rust-lang.org/nightly/core/cmp/trait.Ord.html#tymethod.cmp">Read more</a></p>
</div><h4 id='method.max' class="method"><span id='max.v' class='invisible'><code>fn <a href='https://doc.rust-lang.org/nightly/core/cmp/trait.Ord.html#method.max' class='fnname'>max</a>(self, other: Self) -&gt; Self</code></span><span class='out-of-band'><div class='ghost'></div><div class='since' title='Stable since Rust version 1.21.0'>1.21.0</div><a class='srclink' href='https://doc.rust-lang.org/nightly/src/core/cmp.rs.html#460-463' title='goto source code'>[src]</a></span></h4>
<div class='docblock'><p>Compares and returns the maximum of two values. <a href="https://doc.rust-lang.org/nightly/core/cmp/trait.Ord.html#method.max">Read more</a></p>
</div><h4 id='method.min' class="method"><span id='min.v' class='invisible'><code>fn <a href='https://doc.rust-lang.org/nightly/core/cmp/trait.Ord.html#method.min' class='fnname'>min</a>(self, other: Self) -&gt; Self</code></span><span class='out-of-band'><div class='ghost'></div><div class='since' title='Stable since Rust version 1.21.0'>1.21.0</div><a class='srclink' href='https://doc.rust-lang.org/nightly/src/core/cmp.rs.html#476-479' title='goto source code'>[src]</a></span></h4>
<div class='docblock'><p>Compares and returns the minimum of two values. <a href="https://doc.rust-lang.org/nightly/core/cmp/trait.Ord.html#method.min">Read more</a></p>
</div></div><h3 id='impl-Eq' class='impl'><span class='in-band'><code>impl <a class="trait" href="https://doc.rust-lang.org/nightly/core/cmp/trait.Eq.html" title="trait core::cmp::Eq">Eq</a> for <a class="struct" href="../chrono/struct.Duration.html" title="struct chrono::Duration">Duration</a></code><a href='#impl-Eq' class='anchor'></a></span><span class='out-of-band'><div class='ghost'></div><a class='srclink' href='../src/time/duration.rs.html#44' title='goto source code'>[src]</a></span></h3>
<div class='impl-items'></div><h3 id='impl-Display' class='impl'><span class='in-band'><code>impl <a class="trait" href="https://doc.rust-lang.org/nightly/core/fmt/trait.Display.html" title="trait core::fmt::Display">Display</a> for <a class="struct" href="../chrono/struct.Duration.html" title="struct chrono::Duration">Duration</a></code><a href='#impl-Display' class='anchor'></a></span><span class='out-of-band'><div class='ghost'></div><a class='srclink' href='../src/time/duration.rs.html#363-392' title='goto source code'>[src]</a></span></h3>
<div class='impl-items'><h4 id='method.fmt-1' class="method"><span id='fmt.v-1' class='invisible'><code>fn <a href='https://doc.rust-lang.org/nightly/core/fmt/trait.Display.html#tymethod.fmt' class='fnname'>fmt</a>(&amp;self, f: &amp;mut <a class="struct" href="https://doc.rust-lang.org/nightly/core/fmt/struct.Formatter.html" title="struct core::fmt::Formatter">Formatter</a>) -&gt; <a class="enum" href="https://doc.rust-lang.org/nightly/core/result/enum.Result.html" title="enum core::result::Result">Result</a>&lt;<a class="primitive" href="https://doc.rust-lang.org/nightly/std/primitive.unit.html">()</a>, <a class="struct" href="https://doc.rust-lang.org/nightly/core/fmt/struct.Error.html" title="struct core::fmt::Error">Error</a>&gt;</code></span><span class='out-of-band'><div class='ghost'></div><a class='srclink' href='../src/time/duration.rs.html#364-391' title='goto source code'>[src]</a></span></h4>
<div class='docblock'><p>Formats the value using the given formatter. <a href="https://doc.rust-lang.org/nightly/core/fmt/trait.Display.html#tymethod.fmt">Read more</a></p>
</div></div><h3 id='impl-Add%3CDuration%3E' class='impl'><span class='in-band'><code>impl <a class="trait" href="https://doc.rust-lang.org/nightly/core/ops/arith/trait.Add.html" title="trait core::ops::arith::Add">Add</a>&lt;<a class="struct" href="../chrono/struct.Duration.html" title="struct chrono::Duration">Duration</a>&gt; for <a class="struct" href="../time/struct.SteadyTime.html" title="struct time::SteadyTime">SteadyTime</a></code><a href='#impl-Add%3CDuration%3E' class='anchor'></a></span><span class='out-of-band'><div class='ghost'></div><a class='srclink' href='../src/time/lib.rs.html#275-281' title='goto source code'>[src]</a></span></h3>
<div class='impl-items'><h4 id='associatedtype.Output-6' class="type"><span id='Output.t-6' class='invisible'><code>type <a href='https://doc.rust-lang.org/nightly/core/ops/arith/trait.Add.html#associatedtype.Output' class="type">Output</a> = <a class="struct" href="../time/struct.SteadyTime.html" title="struct time::SteadyTime">SteadyTime</a></code></span></h4>
<div class='docblock'><p>The resulting type after applying the <code>+</code> operator.</p>
</div><h4 id='method.add' class="method"><span id='add.v' class='invisible'><code>fn <a href='https://doc.rust-lang.org/nightly/core/ops/arith/trait.Add.html#tymethod.add' class='fnname'>add</a>(self, other: <a class="struct" href="../chrono/struct.Duration.html" title="struct chrono::Duration">Duration</a>) -&gt; <a class="struct" href="../time/struct.SteadyTime.html" title="struct time::SteadyTime">SteadyTime</a></code></span><span class='out-of-band'><div class='ghost'></div><a class='srclink' href='../src/time/lib.rs.html#278-280' title='goto source code'>[src]</a></span></h4>
<div class='docblock'><p>Performs the <code>+</code> operation.</p>
</div></div><h3 id='impl-Add%3CDuration%3E-1' class='impl'><span class='in-band'><code>impl <a class="trait" href="https://doc.rust-lang.org/nightly/core/ops/arith/trait.Add.html" title="trait core::ops::arith::Add">Add</a>&lt;<a class="struct" href="../chrono/struct.Duration.html" title="struct chrono::Duration">Duration</a>&gt; for <a class="struct" href="../chrono/struct.Duration.html" title="struct chrono::Duration">Duration</a></code><a href='#impl-Add%3CDuration%3E-1' class='anchor'></a></span><span class='out-of-band'><div class='ghost'></div><a class='srclink' href='../src/time/duration.rs.html#303-315' title='goto source code'>[src]</a></span></h3>
<div class='impl-items'><h4 id='associatedtype.Output-7' class="type"><span id='Output.t-7' class='invisible'><code>type <a href='https://doc.rust-lang.org/nightly/core/ops/arith/trait.Add.html#associatedtype.Output' class="type">Output</a> = <a class="struct" href="../chrono/struct.Duration.html" title="struct chrono::Duration">Duration</a></code></span></h4>
<div class='docblock'><p>The resulting type after applying the <code>+</code> operator.</p>
</div><h4 id='method.add-1' class="method"><span id='add.v-1' class='invisible'><code>fn <a href='https://doc.rust-lang.org/nightly/core/ops/arith/trait.Add.html#tymethod.add' class='fnname'>add</a>(self, rhs: <a class="struct" href="../chrono/struct.Duration.html" title="struct chrono::Duration">Duration</a>) -&gt; <a class="struct" href="../chrono/struct.Duration.html" title="struct chrono::Duration">Duration</a></code></span><span class='out-of-band'><div class='ghost'></div><a class='srclink' href='../src/time/duration.rs.html#306-314' title='goto source code'>[src]</a></span></h4>
<div class='docblock'><p>Performs the <code>+</code> operation.</p>
</div></div><h3 id='impl-Add%3CDuration%3E-2' class='impl'><span class='in-band'><code>impl <a class="trait" href="https://doc.rust-lang.org/nightly/core/ops/arith/trait.Add.html" title="trait core::ops::arith::Add">Add</a>&lt;<a class="struct" href="../chrono/struct.Duration.html" title="struct chrono::Duration">Duration</a>&gt; for <a class="struct" href="../time/struct.Tm.html" title="struct time::Tm">Tm</a></code><a href='#impl-Add%3CDuration%3E-2' class='anchor'></a></span><span class='out-of-band'><div class='ghost'></div><a class='srclink' href='../src/time/lib.rs.html#341-351' title='goto source code'>[src]</a></span></h3>
<div class='impl-items'><h4 id='associatedtype.Output-8' class="type"><span id='Output.t-8' class='invisible'><code>type <a href='https://doc.rust-lang.org/nightly/core/ops/arith/trait.Add.html#associatedtype.Output' class="type">Output</a> = <a class="struct" href="../time/struct.Tm.html" title="struct time::Tm">Tm</a></code></span></h4>
<div class='docblock'><p>The resulting type after applying the <code>+</code> operator.</p>
</div><h4 id='method.add-2' class="method"><span id='add.v-2' class='invisible'><code>fn <a href='https://doc.rust-lang.org/nightly/core/ops/arith/trait.Add.html#tymethod.add' class='fnname'>add</a>(self, other: <a class="struct" href="../chrono/struct.Duration.html" title="struct chrono::Duration">Duration</a>) -&gt; <a class="struct" href="../time/struct.Tm.html" title="struct time::Tm">Tm</a></code></span><span class='out-of-band'><div class='ghost'></div><a class='srclink' href='../src/time/lib.rs.html#348-350' title='goto source code'>[src]</a></span></h4>
<div class='docblock'><p>The resulting Tm is in UTC.</p>
</div></div><h3 id='impl-Add%3CDuration%3E-3' class='impl'><span class='in-band'><code>impl <a class="trait" href="https://doc.rust-lang.org/nightly/core/ops/arith/trait.Add.html" title="trait core::ops::arith::Add">Add</a>&lt;<a class="struct" href="../chrono/struct.Duration.html" title="struct chrono::Duration">Duration</a>&gt; for <a class="struct" href="../time/struct.Timespec.html" title="struct time::Timespec">Timespec</a></code><a href='#impl-Add%3CDuration%3E-3' class='anchor'></a></span><span class='out-of-band'><div class='ghost'></div><a class='srclink' href='../src/time/lib.rs.html#91-111' title='goto source code'>[src]</a></span></h3>
<div class='impl-items'><h4 id='associatedtype.Output-9' class="type"><span id='Output.t-9' class='invisible'><code>type <a href='https://doc.rust-lang.org/nightly/core/ops/arith/trait.Add.html#associatedtype.Output' class="type">Output</a> = <a class="struct" href="../time/struct.Timespec.html" title="struct time::Timespec">Timespec</a></code></span></h4>
<div class='docblock'><p>The resulting type after applying the <code>+</code> operator.</p>
</div><h4 id='method.add-3' class="method"><span id='add.v-3' class='invisible'><code>fn <a href='https://doc.rust-lang.org/nightly/core/ops/arith/trait.Add.html#tymethod.add' class='fnname'>add</a>(self, other: <a class="struct" href="../chrono/struct.Duration.html" title="struct chrono::Duration">Duration</a>) -&gt; <a class="struct" href="../time/struct.Timespec.html" title="struct time::Timespec">Timespec</a></code></span><span class='out-of-band'><div class='ghost'></div><a class='srclink' href='../src/time/lib.rs.html#94-110' title='goto source code'>[src]</a></span></h4>
<div class='docblock'><p>Performs the <code>+</code> operation.</p>
</div></div><h3 id='impl-PartialEq%3CDuration%3E' class='impl'><span class='in-band'><code>impl <a class="trait" href="https://doc.rust-lang.org/nightly/core/cmp/trait.PartialEq.html" title="trait core::cmp::PartialEq">PartialEq</a>&lt;<a class="struct" href="../chrono/struct.Duration.html" title="struct chrono::Duration">Duration</a>&gt; for <a class="struct" href="../chrono/struct.Duration.html" title="struct chrono::Duration">Duration</a></code><a href='#impl-PartialEq%3CDuration%3E' class='anchor'></a></span><span class='out-of-band'><div class='ghost'></div><a class='srclink' href='../src/time/duration.rs.html#44' title='goto source code'>[src]</a></span></h3>
<div class='impl-items'><h4 id='method.eq' class="method"><span id='eq.v' class='invisible'><code>fn <a href='https://doc.rust-lang.org/nightly/core/cmp/trait.PartialEq.html#tymethod.eq' class='fnname'>eq</a>(&amp;self, __arg_0: &amp;<a class="struct" href="../chrono/struct.Duration.html" title="struct chrono::Duration">Duration</a>) -&gt; <a class="primitive" href="https://doc.rust-lang.org/nightly/std/primitive.bool.html">bool</a></code></span><span class='out-of-band'><div class='ghost'></div><a class='srclink' href='../src/time/duration.rs.html#44' title='goto source code'>[src]</a></span></h4>
<div class='docblock'><p>This method tests for <code>self</code> and <code>other</code> values to be equal, and is used by <code>==</code>. <a href="https://doc.rust-lang.org/nightly/core/cmp/trait.PartialEq.html#tymethod.eq">Read more</a></p>
</div><h4 id='method.ne' class="method"><span id='ne.v' class='invisible'><code>fn <a href='https://doc.rust-lang.org/nightly/core/cmp/trait.PartialEq.html#method.ne' class='fnname'>ne</a>(&amp;self, __arg_0: &amp;<a class="struct" href="../chrono/struct.Duration.html" title="struct chrono::Duration">Duration</a>) -&gt; <a class="primitive" href="https://doc.rust-lang.org/nightly/std/primitive.bool.html">bool</a></code></span><span class='out-of-band'><div class='ghost'></div><a class='srclink' href='../src/time/duration.rs.html#44' title='goto source code'>[src]</a></span></h4>
<div class='docblock'><p>This method tests for <code>!=</code>.</p>
</div></div><h3 id='impl-Neg' class='impl'><span class='in-band'><code>impl <a class="trait" href="https://doc.rust-lang.org/nightly/core/ops/arith/trait.Neg.html" title="trait core::ops::arith::Neg">Neg</a> for <a class="struct" href="../chrono/struct.Duration.html" title="struct chrono::Duration">Duration</a></code><a href='#impl-Neg' class='anchor'></a></span><span class='out-of-band'><div class='ghost'></div><a class='srclink' href='../src/time/duration.rs.html#290-301' title='goto source code'>[src]</a></span></h3>
<div class='impl-items'><h4 id='associatedtype.Output-10' class="type"><span id='Output.t-10' class='invisible'><code>type <a href='https://doc.rust-lang.org/nightly/core/ops/arith/trait.Neg.html#associatedtype.Output' class="type">Output</a> = <a class="struct" href="../chrono/struct.Duration.html" title="struct chrono::Duration">Duration</a></code></span></h4>
<div class='docblock'><p>The resulting type after applying the <code>-</code> operator.</p>
</div><h4 id='method.neg' class="method"><span id='neg.v' class='invisible'><code>fn <a href='https://doc.rust-lang.org/nightly/core/ops/arith/trait.Neg.html#tymethod.neg' class='fnname'>neg</a>(self) -&gt; <a class="struct" href="../chrono/struct.Duration.html" title="struct chrono::Duration">Duration</a></code></span><span class='out-of-band'><div class='ghost'></div><a class='srclink' href='../src/time/duration.rs.html#294-300' title='goto source code'>[src]</a></span></h4>
<div class='docblock'><p>Performs the unary <code>-</code> operation.</p>
</div></div><h3 id='impl-Add%3COldDuration%3E' class='impl'><span class='in-band'><code>impl <a class="trait" href="https://doc.rust-lang.org/nightly/core/ops/arith/trait.Add.html" title="trait core::ops::arith::Add">Add</a>&lt;<a class="struct" href="../chrono/struct.Duration.html" title="struct chrono::Duration">OldDuration</a>&gt; for <a class="struct" href="../chrono/naive/struct.NaiveDate.html" title="struct chrono::naive::NaiveDate">NaiveDate</a></code><a href='#impl-Add%3COldDuration%3E' class='anchor'></a></span><span class='out-of-band'><div class='ghost'></div><a class='srclink' href='../src/chrono/naive/date.rs.html#1330-1337' title='goto source code'>[src]</a></span></h3>
<div class='docblock'><p>An addition of <code>Duration</code> to <code>NaiveDate</code> discards the fractional days,
rounding to the closest integral number of days towards <code>Duration::zero()</code>.</p>
<p>Panics on underflow or overflow.
Use <a href="#method.checked_add_signed"><code>NaiveDate::checked_add_signed</code></a> to detect that.</p>
<h1 id="example" class="section-header"><a href="#example">Example</a></h1>
<pre class="rust rust-example-rendered">
<span class="kw">use</span> <span class="ident">chrono</span>::<span class="ident">NaiveDate</span>;
<span class="kw">use</span> <span class="ident">time</span>::<span class="ident">Duration</span>;
<span class="kw">let</span> <span class="ident">from_ymd</span> <span class="op">=</span> <span class="ident">NaiveDate</span>::<span class="ident">from_ymd</span>;
<span class="macro">assert_eq</span><span class="macro">!</span>(<span class="ident">from_ymd</span>(<span class="number">2014</span>, <span class="number">1</span>, <span class="number">1</span>) <span class="op">+</span> <span class="ident">Duration</span>::<span class="ident">zero</span>(), <span class="ident">from_ymd</span>(<span class="number">2014</span>, <span class="number">1</span>, <span class="number">1</span>));
<span class="macro">assert_eq</span><span class="macro">!</span>(<span class="ident">from_ymd</span>(<span class="number">2014</span>, <span class="number">1</span>, <span class="number">1</span>) <span class="op">+</span> <span class="ident">Duration</span>::<span class="ident">seconds</span>(<span class="number">86399</span>), <span class="ident">from_ymd</span>(<span class="number">2014</span>, <span class="number">1</span>, <span class="number">1</span>));
<span class="macro">assert_eq</span><span class="macro">!</span>(<span class="ident">from_ymd</span>(<span class="number">2014</span>, <span class="number">1</span>, <span class="number">1</span>) <span class="op">+</span> <span class="ident">Duration</span>::<span class="ident">seconds</span>(<span class="op">-</span><span class="number">86399</span>), <span class="ident">from_ymd</span>(<span class="number">2014</span>, <span class="number">1</span>, <span class="number">1</span>));
<span class="macro">assert_eq</span><span class="macro">!</span>(<span class="ident">from_ymd</span>(<span class="number">2014</span>, <span class="number">1</span>, <span class="number">1</span>) <span class="op">+</span> <span class="ident">Duration</span>::<span class="ident">days</span>(<span class="number">1</span>), <span class="ident">from_ymd</span>(<span class="number">2014</span>, <span class="number">1</span>, <span class="number">2</span>));
<span class="macro">assert_eq</span><span class="macro">!</span>(<span class="ident">from_ymd</span>(<span class="number">2014</span>, <span class="number">1</span>, <span class="number">1</span>) <span class="op">+</span> <span class="ident">Duration</span>::<span class="ident">days</span>(<span class="op">-</span><span class="number">1</span>), <span class="ident">from_ymd</span>(<span class="number">2013</span>, <span class="number">12</span>, <span class="number">31</span>));
<span class="macro">assert_eq</span><span class="macro">!</span>(<span class="ident">from_ymd</span>(<span class="number">2014</span>, <span class="number">1</span>, <span class="number">1</span>) <span class="op">+</span> <span class="ident">Duration</span>::<span class="ident">days</span>(<span class="number">364</span>), <span class="ident">from_ymd</span>(<span class="number">2014</span>, <span class="number">12</span>, <span class="number">31</span>));
<span class="macro">assert_eq</span><span class="macro">!</span>(<span class="ident">from_ymd</span>(<span class="number">2014</span>, <span class="number">1</span>, <span class="number">1</span>) <span class="op">+</span> <span class="ident">Duration</span>::<span class="ident">days</span>(<span class="number">365</span><span class="kw-2">*</span><span class="number">4</span> <span class="op">+</span> <span class="number">1</span>), <span class="ident">from_ymd</span>(<span class="number">2018</span>, <span class="number">1</span>, <span class="number">1</span>));
<span class="macro">assert_eq</span><span class="macro">!</span>(<span class="ident">from_ymd</span>(<span class="number">2014</span>, <span class="number">1</span>, <span class="number">1</span>) <span class="op">+</span> <span class="ident">Duration</span>::<span class="ident">days</span>(<span class="number">365</span><span class="kw-2">*</span><span class="number">400</span> <span class="op">+</span> <span class="number">97</span>), <span class="ident">from_ymd</span>(<span class="number">2414</span>, <span class="number">1</span>, <span class="number">1</span>));</pre>
</div><div class='impl-items'><h4 id='associatedtype.Output-11' class="type"><span id='Output.t-11' class='invisible'><code>type <a href='https://doc.rust-lang.org/nightly/core/ops/arith/trait.Add.html#associatedtype.Output' class="type">Output</a> = <a class="struct" href="../chrono/naive/struct.NaiveDate.html" title="struct chrono::naive::NaiveDate">NaiveDate</a></code></span></h4>
<div class='docblock'><p>The resulting type after applying the <code>+</code> operator.</p>
</div><h4 id='method.add-4' class="method"><span id='add.v-4' class='invisible'><code>fn <a href='https://doc.rust-lang.org/nightly/core/ops/arith/trait.Add.html#tymethod.add' class='fnname'>add</a>(self, rhs: <a class="struct" href="../chrono/struct.Duration.html" title="struct chrono::Duration">OldDuration</a>) -&gt; <a class="struct" href="../chrono/naive/struct.NaiveDate.html" title="struct chrono::naive::NaiveDate">NaiveDate</a></code></span><span class='out-of-band'><div class='ghost'></div><a class='srclink' href='../src/chrono/naive/date.rs.html#1334-1336' title='goto source code'>[src]</a></span></h4>
<div class='docblock'><p>Performs the <code>+</code> operation.</p>
</div></div><h3 id='impl-AddAssign%3COldDuration%3E' class='impl'><span class='in-band'><code>impl <a class="trait" href="https://doc.rust-lang.org/nightly/core/ops/arith/trait.AddAssign.html" title="trait core::ops::arith::AddAssign">AddAssign</a>&lt;<a class="struct" href="../chrono/struct.Duration.html" title="struct chrono::Duration">OldDuration</a>&gt; for <a class="struct" href="../chrono/naive/struct.NaiveDate.html" title="struct chrono::naive::NaiveDate">NaiveDate</a></code><a href='#impl-AddAssign%3COldDuration%3E' class='anchor'></a></span><span class='out-of-band'><div class='ghost'></div><a class='srclink' href='../src/chrono/naive/date.rs.html#1339-1344' title='goto source code'>[src]</a></span></h3>
<div class='impl-items'><h4 id='method.add_assign' class="method"><span id='add_assign.v' class='invisible'><code>fn <a href='https://doc.rust-lang.org/nightly/core/ops/arith/trait.AddAssign.html#tymethod.add_assign' class='fnname'>add_assign</a>(&amp;mut self, rhs: <a class="struct" href="../chrono/struct.Duration.html" title="struct chrono::Duration">OldDuration</a>)</code></span><span class='out-of-band'><div class='ghost'></div><a class='srclink' href='../src/chrono/naive/date.rs.html#1341-1343' title='goto source code'>[src]</a></span></h4>
<div class='docblock'><p>Performs the <code>+=</code> operation.</p>
</div></div><h3 id='impl-Sub%3COldDuration%3E' class='impl'><span class='in-band'><code>impl <a class="trait" href="https://doc.rust-lang.org/nightly/core/ops/arith/trait.Sub.html" title="trait core::ops::arith::Sub">Sub</a>&lt;<a class="struct" href="../chrono/struct.Duration.html" title="struct chrono::Duration">OldDuration</a>&gt; for <a class="struct" href="../chrono/naive/struct.NaiveDate.html" title="struct chrono::naive::NaiveDate">NaiveDate</a></code><a href='#impl-Sub%3COldDuration%3E' class='anchor'></a></span><span class='out-of-band'><div class='ghost'></div><a class='srclink' href='../src/chrono/naive/date.rs.html#1372-1379' title='goto source code'>[src]</a></span></h3>
<div class='docblock'><p>A subtraction of <code>Duration</code> from <code>NaiveDate</code> discards the fractional days,
rounding to the closest integral number of days towards <code>Duration::zero()</code>.
It is same to the addition with a negated <code>Duration</code>.</p>
<p>Panics on underflow or overflow.
Use <a href="#method.checked_sub_signed"><code>NaiveDate::checked_sub_signed</code></a> to detect that.</p>
<h1 id="example-1" class="section-header"><a href="#example-1">Example</a></h1>
<pre class="rust rust-example-rendered">
<span class="kw">use</span> <span class="ident">chrono</span>::<span class="ident">NaiveDate</span>;
<span class="kw">use</span> <span class="ident">time</span>::<span class="ident">Duration</span>;
<span class="kw">let</span> <span class="ident">from_ymd</span> <span class="op">=</span> <span class="ident">NaiveDate</span>::<span class="ident">from_ymd</span>;
<span class="macro">assert_eq</span><span class="macro">!</span>(<span class="ident">from_ymd</span>(<span class="number">2014</span>, <span class="number">1</span>, <span class="number">1</span>) <span class="op">-</span> <span class="ident">Duration</span>::<span class="ident">zero</span>(), <span class="ident">from_ymd</span>(<span class="number">2014</span>, <span class="number">1</span>, <span class="number">1</span>));
<span class="macro">assert_eq</span><span class="macro">!</span>(<span class="ident">from_ymd</span>(<span class="number">2014</span>, <span class="number">1</span>, <span class="number">1</span>) <span class="op">-</span> <span class="ident">Duration</span>::<span class="ident">seconds</span>(<span class="number">86399</span>), <span class="ident">from_ymd</span>(<span class="number">2014</span>, <span class="number">1</span>, <span class="number">1</span>));
<span class="macro">assert_eq</span><span class="macro">!</span>(<span class="ident">from_ymd</span>(<span class="number">2014</span>, <span class="number">1</span>, <span class="number">1</span>) <span class="op">-</span> <span class="ident">Duration</span>::<span class="ident">seconds</span>(<span class="op">-</span><span class="number">86399</span>), <span class="ident">from_ymd</span>(<span class="number">2014</span>, <span class="number">1</span>, <span class="number">1</span>));
<span class="macro">assert_eq</span><span class="macro">!</span>(<span class="ident">from_ymd</span>(<span class="number">2014</span>, <span class="number">1</span>, <span class="number">1</span>) <span class="op">-</span> <span class="ident">Duration</span>::<span class="ident">days</span>(<span class="number">1</span>), <span class="ident">from_ymd</span>(<span class="number">2013</span>, <span class="number">12</span>, <span class="number">31</span>));
<span class="macro">assert_eq</span><span class="macro">!</span>(<span class="ident">from_ymd</span>(<span class="number">2014</span>, <span class="number">1</span>, <span class="number">1</span>) <span class="op">-</span> <span class="ident">Duration</span>::<span class="ident">days</span>(<span class="op">-</span><span class="number">1</span>), <span class="ident">from_ymd</span>(<span class="number">2014</span>, <span class="number">1</span>, <span class="number">2</span>));
<span class="macro">assert_eq</span><span class="macro">!</span>(<span class="ident">from_ymd</span>(<span class="number">2014</span>, <span class="number">1</span>, <span class="number">1</span>) <span class="op">-</span> <span class="ident">Duration</span>::<span class="ident">days</span>(<span class="number">364</span>), <span class="ident">from_ymd</span>(<span class="number">2013</span>, <span class="number">1</span>, <span class="number">2</span>));
<span class="macro">assert_eq</span><span class="macro">!</span>(<span class="ident">from_ymd</span>(<span class="number">2014</span>, <span class="number">1</span>, <span class="number">1</span>) <span class="op">-</span> <span class="ident">Duration</span>::<span class="ident">days</span>(<span class="number">365</span><span class="kw-2">*</span><span class="number">4</span> <span class="op">+</span> <span class="number">1</span>), <span class="ident">from_ymd</span>(<span class="number">2010</span>, <span class="number">1</span>, <span class="number">1</span>));
<span class="macro">assert_eq</span><span class="macro">!</span>(<span class="ident">from_ymd</span>(<span class="number">2014</span>, <span class="number">1</span>, <span class="number">1</span>) <span class="op">-</span> <span class="ident">Duration</span>::<span class="ident">days</span>(<span class="number">365</span><span class="kw-2">*</span><span class="number">400</span> <span class="op">+</span> <span class="number">97</span>), <span class="ident">from_ymd</span>(<span class="number">1614</span>, <span class="number">1</span>, <span class="number">1</span>));</pre>
</div><div class='impl-items'><h4 id='associatedtype.Output-12' class="type"><span id='Output.t-12' class='invisible'><code>type <a href='https://doc.rust-lang.org/nightly/core/ops/arith/trait.Sub.html#associatedtype.Output' class="type">Output</a> = <a class="struct" href="../chrono/naive/struct.NaiveDate.html" title="struct chrono::naive::NaiveDate">NaiveDate</a></code></span></h4>
<div class='docblock'><p>The resulting type after applying the <code>-</code> operator.</p>
</div><h4 id='method.sub-4' class="method"><span id='sub.v-4' class='invisible'><code>fn <a href='https://doc.rust-lang.org/nightly/core/ops/arith/trait.Sub.html#tymethod.sub' class='fnname'>sub</a>(self, rhs: <a class="struct" href="../chrono/struct.Duration.html" title="struct chrono::Duration">OldDuration</a>) -&gt; <a class="struct" href="../chrono/naive/struct.NaiveDate.html" title="struct chrono::naive::NaiveDate">NaiveDate</a></code></span><span class='out-of-band'><div class='ghost'></div><a class='srclink' href='../src/chrono/naive/date.rs.html#1376-1378' title='goto source code'>[src]</a></span></h4>
<div class='docblock'><p>Performs the <code>-</code> operation.</p>
</div></div><h3 id='impl-SubAssign%3COldDuration%3E' class='impl'><span class='in-band'><code>impl <a class="trait" href="https://doc.rust-lang.org/nightly/core/ops/arith/trait.SubAssign.html" title="trait core::ops::arith::SubAssign">SubAssign</a>&lt;<a class="struct" href="../chrono/struct.Duration.html" title="struct chrono::Duration">OldDuration</a>&gt; for <a class="struct" href="../chrono/naive/struct.NaiveDate.html" title="struct chrono::naive::NaiveDate">NaiveDate</a></code><a href='#impl-SubAssign%3COldDuration%3E' class='anchor'></a></span><span class='out-of-band'><div class='ghost'></div><a class='srclink' href='../src/chrono/naive/date.rs.html#1381-1386' title='goto source code'>[src]</a></span></h3>
<div class='impl-items'><h4 id='method.sub_assign' class="method"><span id='sub_assign.v' class='invisible'><code>fn <a href='https://doc.rust-lang.org/nightly/core/ops/arith/trait.SubAssign.html#tymethod.sub_assign' class='fnname'>sub_assign</a>(&amp;mut self, rhs: <a class="struct" href="../chrono/struct.Duration.html" title="struct chrono::Duration">OldDuration</a>)</code></span><span class='out-of-band'><div class='ghost'></div><a class='srclink' href='../src/chrono/naive/date.rs.html#1383-1385' title='goto source code'>[src]</a></span></h4>
<div class='docblock'><p>Performs the <code>-=</code> operation.</p>
</div></div><h3 id='impl-Add%3COldDuration%3E-1' class='impl'><span class='in-band'><code>impl <a class="trait" href="https://doc.rust-lang.org/nightly/core/ops/arith/trait.Add.html" title="trait core::ops::arith::Add">Add</a>&lt;<a class="struct" href="../chrono/struct.Duration.html" title="struct chrono::Duration">OldDuration</a>&gt; for <a class="struct" href="../chrono/naive/struct.NaiveTime.html" title="struct chrono::naive::NaiveTime">NaiveTime</a></code><a href='#impl-Add%3COldDuration%3E-1' class='anchor'></a></span><span class='out-of-band'><div class='ghost'></div><a class='srclink' href='../src/chrono/naive/time.rs.html#1050-1057' title='goto source code'>[src]</a></span></h3>
<div class='docblock'><p>An addition of <code>Duration</code> to <code>NaiveTime</code> wraps around and never overflows or underflows.
In particular the addition ignores integral number of days.</p>
<p>As a part of Chrono's <a href="#leap-second-handling">leap second handling</a>,
the addition assumes that <strong>there is no leap second ever</strong>,
except when the <code>NaiveTime</code> itself represents a leap second
in which case the assumption becomes that <strong>there is exactly a single leap second ever</strong>.</p>
<h1 id="example-2" class="section-header"><a href="#example-2">Example</a></h1>
<pre class="rust rust-example-rendered">
<span class="kw">use</span> <span class="ident">chrono</span>::<span class="ident">NaiveTime</span>;
<span class="kw">use</span> <span class="ident">time</span>::<span class="ident">Duration</span>;
<span class="kw">let</span> <span class="ident">from_hmsm</span> <span class="op">=</span> <span class="ident">NaiveTime</span>::<span class="ident">from_hms_milli</span>;
<span class="macro">assert_eq</span><span class="macro">!</span>(<span class="ident">from_hmsm</span>(<span class="number">3</span>, <span class="number">5</span>, <span class="number">7</span>, <span class="number">0</span>) <span class="op">+</span> <span class="ident">Duration</span>::<span class="ident">zero</span>(), <span class="ident">from_hmsm</span>(<span class="number">3</span>, <span class="number">5</span>, <span class="number">7</span>, <span class="number">0</span>));
<span class="macro">assert_eq</span><span class="macro">!</span>(<span class="ident">from_hmsm</span>(<span class="number">3</span>, <span class="number">5</span>, <span class="number">7</span>, <span class="number">0</span>) <span class="op">+</span> <span class="ident">Duration</span>::<span class="ident">seconds</span>(<span class="number">1</span>), <span class="ident">from_hmsm</span>(<span class="number">3</span>, <span class="number">5</span>, <span class="number">8</span>, <span class="number">0</span>));
<span class="macro">assert_eq</span><span class="macro">!</span>(<span class="ident">from_hmsm</span>(<span class="number">3</span>, <span class="number">5</span>, <span class="number">7</span>, <span class="number">0</span>) <span class="op">+</span> <span class="ident">Duration</span>::<span class="ident">seconds</span>(<span class="op">-</span><span class="number">1</span>), <span class="ident">from_hmsm</span>(<span class="number">3</span>, <span class="number">5</span>, <span class="number">6</span>, <span class="number">0</span>));
<span class="macro">assert_eq</span><span class="macro">!</span>(<span class="ident">from_hmsm</span>(<span class="number">3</span>, <span class="number">5</span>, <span class="number">7</span>, <span class="number">0</span>) <span class="op">+</span> <span class="ident">Duration</span>::<span class="ident">seconds</span>(<span class="number">60</span> <span class="op">+</span> <span class="number">4</span>), <span class="ident">from_hmsm</span>(<span class="number">3</span>, <span class="number">6</span>, <span class="number">11</span>, <span class="number">0</span>));
<span class="macro">assert_eq</span><span class="macro">!</span>(<span class="ident">from_hmsm</span>(<span class="number">3</span>, <span class="number">5</span>, <span class="number">7</span>, <span class="number">0</span>) <span class="op">+</span> <span class="ident">Duration</span>::<span class="ident">seconds</span>(<span class="number">7</span><span class="kw-2">*</span><span class="number">60</span><span class="kw-2">*</span><span class="number">60</span> <span class="op">-</span> <span class="number">6</span><span class="kw-2">*</span><span class="number">60</span>), <span class="ident">from_hmsm</span>(<span class="number">9</span>, <span class="number">59</span>, <span class="number">7</span>, <span class="number">0</span>));
<span class="macro">assert_eq</span><span class="macro">!</span>(<span class="ident">from_hmsm</span>(<span class="number">3</span>, <span class="number">5</span>, <span class="number">7</span>, <span class="number">0</span>) <span class="op">+</span> <span class="ident">Duration</span>::<span class="ident">milliseconds</span>(<span class="number">80</span>), <span class="ident">from_hmsm</span>(<span class="number">3</span>, <span class="number">5</span>, <span class="number">7</span>, <span class="number">80</span>));
<span class="macro">assert_eq</span><span class="macro">!</span>(<span class="ident">from_hmsm</span>(<span class="number">3</span>, <span class="number">5</span>, <span class="number">7</span>, <span class="number">950</span>) <span class="op">+</span> <span class="ident">Duration</span>::<span class="ident">milliseconds</span>(<span class="number">280</span>), <span class="ident">from_hmsm</span>(<span class="number">3</span>, <span class="number">5</span>, <span class="number">8</span>, <span class="number">230</span>));
<span class="macro">assert_eq</span><span class="macro">!</span>(<span class="ident">from_hmsm</span>(<span class="number">3</span>, <span class="number">5</span>, <span class="number">7</span>, <span class="number">950</span>) <span class="op">+</span> <span class="ident">Duration</span>::<span class="ident">milliseconds</span>(<span class="op">-</span><span class="number">980</span>), <span class="ident">from_hmsm</span>(<span class="number">3</span>, <span class="number">5</span>, <span class="number">6</span>, <span class="number">970</span>));</pre>
<p>The addition wraps around.</p>
<pre class="rust rust-example-rendered">
<span class="macro">assert_eq</span><span class="macro">!</span>(<span class="ident">from_hmsm</span>(<span class="number">3</span>, <span class="number">5</span>, <span class="number">7</span>, <span class="number">0</span>) <span class="op">+</span> <span class="ident">Duration</span>::<span class="ident">seconds</span>(<span class="number">22</span><span class="kw-2">*</span><span class="number">60</span><span class="kw-2">*</span><span class="number">60</span>), <span class="ident">from_hmsm</span>(<span class="number">1</span>, <span class="number">5</span>, <span class="number">7</span>, <span class="number">0</span>));
<span class="macro">assert_eq</span><span class="macro">!</span>(<span class="ident">from_hmsm</span>(<span class="number">3</span>, <span class="number">5</span>, <span class="number">7</span>, <span class="number">0</span>) <span class="op">+</span> <span class="ident">Duration</span>::<span class="ident">seconds</span>(<span class="op">-</span><span class="number">8</span><span class="kw-2">*</span><span class="number">60</span><span class="kw-2">*</span><span class="number">60</span>), <span class="ident">from_hmsm</span>(<span class="number">19</span>, <span class="number">5</span>, <span class="number">7</span>, <span class="number">0</span>));
<span class="macro">assert_eq</span><span class="macro">!</span>(<span class="ident">from_hmsm</span>(<span class="number">3</span>, <span class="number">5</span>, <span class="number">7</span>, <span class="number">0</span>) <span class="op">+</span> <span class="ident">Duration</span>::<span class="ident">days</span>(<span class="number">800</span>), <span class="ident">from_hmsm</span>(<span class="number">3</span>, <span class="number">5</span>, <span class="number">7</span>, <span class="number">0</span>));</pre>
<p>Leap seconds are handled, but the addition assumes that it is the only leap second happened.</p>
<pre class="rust rust-example-rendered">
<span class="kw">let</span> <span class="ident">leap</span> <span class="op">=</span> <span class="ident">from_hmsm</span>(<span class="number">3</span>, <span class="number">5</span>, <span class="number">59</span>, <span class="number">1_300</span>);
<span class="macro">assert_eq</span><span class="macro">!</span>(<span class="ident">leap</span> <span class="op">+</span> <span class="ident">Duration</span>::<span class="ident">zero</span>(), <span class="ident">from_hmsm</span>(<span class="number">3</span>, <span class="number">5</span>, <span class="number">59</span>, <span class="number">1_300</span>));
<span class="macro">assert_eq</span><span class="macro">!</span>(<span class="ident">leap</span> <span class="op">+</span> <span class="ident">Duration</span>::<span class="ident">milliseconds</span>(<span class="op">-</span><span class="number">500</span>), <span class="ident">from_hmsm</span>(<span class="number">3</span>, <span class="number">5</span>, <span class="number">59</span>, <span class="number">800</span>));
<span class="macro">assert_eq</span><span class="macro">!</span>(<span class="ident">leap</span> <span class="op">+</span> <span class="ident">Duration</span>::<span class="ident">milliseconds</span>(<span class="number">500</span>), <span class="ident">from_hmsm</span>(<span class="number">3</span>, <span class="number">5</span>, <span class="number">59</span>, <span class="number">1_800</span>));
<span class="macro">assert_eq</span><span class="macro">!</span>(<span class="ident">leap</span> <span class="op">+</span> <span class="ident">Duration</span>::<span class="ident">milliseconds</span>(<span class="number">800</span>), <span class="ident">from_hmsm</span>(<span class="number">3</span>, <span class="number">6</span>, <span class="number">0</span>, <span class="number">100</span>));
<span class="macro">assert_eq</span><span class="macro">!</span>(<span class="ident">leap</span> <span class="op">+</span> <span class="ident">Duration</span>::<span class="ident">seconds</span>(<span class="number">10</span>), <span class="ident">from_hmsm</span>(<span class="number">3</span>, <span class="number">6</span>, <span class="number">9</span>, <span class="number">300</span>));
<span class="macro">assert_eq</span><span class="macro">!</span>(<span class="ident">leap</span> <span class="op">+</span> <span class="ident">Duration</span>::<span class="ident">seconds</span>(<span class="op">-</span><span class="number">10</span>), <span class="ident">from_hmsm</span>(<span class="number">3</span>, <span class="number">5</span>, <span class="number">50</span>, <span class="number">300</span>));
<span class="macro">assert_eq</span><span class="macro">!</span>(<span class="ident">leap</span> <span class="op">+</span> <span class="ident">Duration</span>::<span class="ident">days</span>(<span class="number">1</span>), <span class="ident">from_hmsm</span>(<span class="number">3</span>, <span class="number">5</span>, <span class="number">59</span>, <span class="number">300</span>));</pre>
</div><div class='impl-items'><h4 id='associatedtype.Output-13' class="type"><span id='Output.t-13' class='invisible'><code>type <a href='https://doc.rust-lang.org/nightly/core/ops/arith/trait.Add.html#associatedtype.Output' class="type">Output</a> = <a class="struct" href="../chrono/naive/struct.NaiveTime.html" title="struct chrono::naive::NaiveTime">NaiveTime</a></code></span></h4>
<div class='docblock'><p>The resulting type after applying the <code>+</code> operator.</p>
</div><h4 id='method.add-5' class="method"><span id='add.v-5' class='invisible'><code>fn <a href='https://doc.rust-lang.org/nightly/core/ops/arith/trait.Add.html#tymethod.add' class='fnname'>add</a>(self, rhs: <a class="struct" href="../chrono/struct.Duration.html" title="struct chrono::Duration">OldDuration</a>) -&gt; <a class="struct" href="../chrono/naive/struct.NaiveTime.html" title="struct chrono::naive::NaiveTime">NaiveTime</a></code></span><span class='out-of-band'><div class='ghost'></div><a class='srclink' href='../src/chrono/naive/time.rs.html#1054-1056' title='goto source code'>[src]</a></span></h4>
<div class='docblock'><p>Performs the <code>+</code> operation.</p>
</div></div><h3 id='impl-AddAssign%3COldDuration%3E-1' class='impl'><span class='in-band'><code>impl <a class="trait" href="https://doc.rust-lang.org/nightly/core/ops/arith/trait.AddAssign.html" title="trait core::ops::arith::AddAssign">AddAssign</a>&lt;<a class="struct" href="../chrono/struct.Duration.html" title="struct chrono::Duration">OldDuration</a>&gt; for <a class="struct" href="../chrono/naive/struct.NaiveTime.html" title="struct chrono::naive::NaiveTime">NaiveTime</a></code><a href='#impl-AddAssign%3COldDuration%3E-1' class='anchor'></a></span><span class='out-of-band'><div class='ghost'></div><a class='srclink' href='../src/chrono/naive/time.rs.html#1059-1064' title='goto source code'>[src]</a></span></h3>
<div class='impl-items'><h4 id='method.add_assign-1' class="method"><span id='add_assign.v-1' class='invisible'><code>fn <a href='https://doc.rust-lang.org/nightly/core/ops/arith/trait.AddAssign.html#tymethod.add_assign' class='fnname'>add_assign</a>(&amp;mut self, rhs: <a class="struct" href="../chrono/struct.Duration.html" title="struct chrono::Duration">OldDuration</a>)</code></span><span class='out-of-band'><div class='ghost'></div><a class='srclink' href='../src/chrono/naive/time.rs.html#1061-1063' title='goto source code'>[src]</a></span></h4>
<div class='docblock'><p>Performs the <code>+=</code> operation.</p>
</div></div><h3 id='impl-Sub%3COldDuration%3E-1' class='impl'><span class='in-band'><code>impl <a class="trait" href="https://doc.rust-lang.org/nightly/core/ops/arith/trait.Sub.html" title="trait core::ops::arith::Sub">Sub</a>&lt;<a class="struct" href="../chrono/struct.Duration.html" title="struct chrono::Duration">OldDuration</a>&gt; for <a class="struct" href="../chrono/naive/struct.NaiveTime.html" title="struct chrono::naive::NaiveTime">NaiveTime</a></code><a href='#impl-Sub%3COldDuration%3E-1' class='anchor'></a></span><span class='out-of-band'><div class='ghost'></div><a class='srclink' href='../src/chrono/naive/time.rs.html#1120-1127' title='goto source code'>[src]</a></span></h3>
<div class='docblock'><p>A subtraction of <code>Duration</code> from <code>NaiveTime</code> wraps around and never overflows or underflows.
In particular the addition ignores integral number of days.
It is same to the addition with a negated <code>Duration</code>.</p>
<p>As a part of Chrono's <a href="#leap-second-handling">leap second handling</a>,
the addition assumes that <strong>there is no leap second ever</strong>,
except when the <code>NaiveTime</code> itself represents a leap second
in which case the assumption becomes that <strong>there is exactly a single leap second ever</strong>.</p>
<h1 id="example-3" class="section-header"><a href="#example-3">Example</a></h1>
<pre class="rust rust-example-rendered">
<span class="kw">use</span> <span class="ident">chrono</span>::<span class="ident">NaiveTime</span>;
<span class="kw">use</span> <span class="ident">time</span>::<span class="ident">Duration</span>;
<span class="kw">let</span> <span class="ident">from_hmsm</span> <span class="op">=</span> <span class="ident">NaiveTime</span>::<span class="ident">from_hms_milli</span>;
<span class="macro">assert_eq</span><span class="macro">!</span>(<span class="ident">from_hmsm</span>(<span class="number">3</span>, <span class="number">5</span>, <span class="number">7</span>, <span class="number">0</span>) <span class="op">-</span> <span class="ident">Duration</span>::<span class="ident">zero</span>(), <span class="ident">from_hmsm</span>(<span class="number">3</span>, <span class="number">5</span>, <span class="number">7</span>, <span class="number">0</span>));
<span class="macro">assert_eq</span><span class="macro">!</span>(<span class="ident">from_hmsm</span>(<span class="number">3</span>, <span class="number">5</span>, <span class="number">7</span>, <span class="number">0</span>) <span class="op">-</span> <span class="ident">Duration</span>::<span class="ident">seconds</span>(<span class="number">1</span>), <span class="ident">from_hmsm</span>(<span class="number">3</span>, <span class="number">5</span>, <span class="number">6</span>, <span class="number">0</span>));
<span class="macro">assert_eq</span><span class="macro">!</span>(<span class="ident">from_hmsm</span>(<span class="number">3</span>, <span class="number">5</span>, <span class="number">7</span>, <span class="number">0</span>) <span class="op">-</span> <span class="ident">Duration</span>::<span class="ident">seconds</span>(<span class="number">60</span> <span class="op">+</span> <span class="number">5</span>), <span class="ident">from_hmsm</span>(<span class="number">3</span>, <span class="number">4</span>, <span class="number">2</span>, <span class="number">0</span>));
<span class="macro">assert_eq</span><span class="macro">!</span>(<span class="ident">from_hmsm</span>(<span class="number">3</span>, <span class="number">5</span>, <span class="number">7</span>, <span class="number">0</span>) <span class="op">-</span> <span class="ident">Duration</span>::<span class="ident">seconds</span>(<span class="number">2</span><span class="kw-2">*</span><span class="number">60</span><span class="kw-2">*</span><span class="number">60</span> <span class="op">+</span> <span class="number">6</span><span class="kw-2">*</span><span class="number">60</span>), <span class="ident">from_hmsm</span>(<span class="number">0</span>, <span class="number">59</span>, <span class="number">7</span>, <span class="number">0</span>));
<span class="macro">assert_eq</span><span class="macro">!</span>(<span class="ident">from_hmsm</span>(<span class="number">3</span>, <span class="number">5</span>, <span class="number">7</span>, <span class="number">0</span>) <span class="op">-</span> <span class="ident">Duration</span>::<span class="ident">milliseconds</span>(<span class="number">80</span>), <span class="ident">from_hmsm</span>(<span class="number">3</span>, <span class="number">5</span>, <span class="number">6</span>, <span class="number">920</span>));
<span class="macro">assert_eq</span><span class="macro">!</span>(<span class="ident">from_hmsm</span>(<span class="number">3</span>, <span class="number">5</span>, <span class="number">7</span>, <span class="number">950</span>) <span class="op">-</span> <span class="ident">Duration</span>::<span class="ident">milliseconds</span>(<span class="number">280</span>), <span class="ident">from_hmsm</span>(<span class="number">3</span>, <span class="number">5</span>, <span class="number">7</span>, <span class="number">670</span>));</pre>
<p>The subtraction wraps around.</p>
<pre class="rust rust-example-rendered">
<span class="macro">assert_eq</span><span class="macro">!</span>(<span class="ident">from_hmsm</span>(<span class="number">3</span>, <span class="number">5</span>, <span class="number">7</span>, <span class="number">0</span>) <span class="op">-</span> <span class="ident">Duration</span>::<span class="ident">seconds</span>(<span class="number">8</span><span class="kw-2">*</span><span class="number">60</span><span class="kw-2">*</span><span class="number">60</span>), <span class="ident">from_hmsm</span>(<span class="number">19</span>, <span class="number">5</span>, <span class="number">7</span>, <span class="number">0</span>));
<span class="macro">assert_eq</span><span class="macro">!</span>(<span class="ident">from_hmsm</span>(<span class="number">3</span>, <span class="number">5</span>, <span class="number">7</span>, <span class="number">0</span>) <span class="op">-</span> <span class="ident">Duration</span>::<span class="ident">days</span>(<span class="number">800</span>), <span class="ident">from_hmsm</span>(<span class="number">3</span>, <span class="number">5</span>, <span class="number">7</span>, <span class="number">0</span>));</pre>
<p>Leap seconds are handled, but the subtraction assumes that it is the only leap second happened.</p>
<pre class="rust rust-example-rendered">
<span class="kw">let</span> <span class="ident">leap</span> <span class="op">=</span> <span class="ident">from_hmsm</span>(<span class="number">3</span>, <span class="number">5</span>, <span class="number">59</span>, <span class="number">1_300</span>);
<span class="macro">assert_eq</span><span class="macro">!</span>(<span class="ident">leap</span> <span class="op">-</span> <span class="ident">Duration</span>::<span class="ident">zero</span>(), <span class="ident">from_hmsm</span>(<span class="number">3</span>, <span class="number">5</span>, <span class="number">59</span>, <span class="number">1_300</span>));
<span class="macro">assert_eq</span><span class="macro">!</span>(<span class="ident">leap</span> <span class="op">-</span> <span class="ident">Duration</span>::<span class="ident">milliseconds</span>(<span class="number">200</span>), <span class="ident">from_hmsm</span>(<span class="number">3</span>, <span class="number">5</span>, <span class="number">59</span>, <span class="number">1_100</span>));
<span class="macro">assert_eq</span><span class="macro">!</span>(<span class="ident">leap</span> <span class="op">-</span> <span class="ident">Duration</span>::<span class="ident">milliseconds</span>(<span class="number">500</span>), <span class="ident">from_hmsm</span>(<span class="number">3</span>, <span class="number">5</span>, <span class="number">59</span>, <span class="number">800</span>));
<span class="macro">assert_eq</span><span class="macro">!</span>(<span class="ident">leap</span> <span class="op">-</span> <span class="ident">Duration</span>::<span class="ident">seconds</span>(<span class="number">60</span>), <span class="ident">from_hmsm</span>(<span class="number">3</span>, <span class="number">5</span>, <span class="number">0</span>, <span class="number">300</span>));
<span class="macro">assert_eq</span><span class="macro">!</span>(<span class="ident">leap</span> <span class="op">-</span> <span class="ident">Duration</span>::<span class="ident">days</span>(<span class="number">1</span>), <span class="ident">from_hmsm</span>(<span class="number">3</span>, <span class="number">6</span>, <span class="number">0</span>, <span class="number">300</span>));</pre>
</div><div class='impl-items'><h4 id='associatedtype.Output-14' class="type"><span id='Output.t-14' class='invisible'><code>type <a href='https://doc.rust-lang.org/nightly/core/ops/arith/trait.Sub.html#associatedtype.Output' class="type">Output</a> = <a class="struct" href="../chrono/naive/struct.NaiveTime.html" title="struct chrono::naive::NaiveTime">NaiveTime</a></code></span></h4>
<div class='docblock'><p>The resulting type after applying the <code>-</code> operator.</p>
</div><h4 id='method.sub-5' class="method"><span id='sub.v-5' class='invisible'><code>fn <a href='https://doc.rust-lang.org/nightly/core/ops/arith/trait.Sub.html#tymethod.sub' class='fnname'>sub</a>(self, rhs: <a class="struct" href="../chrono/struct.Duration.html" title="struct chrono::Duration">OldDuration</a>) -&gt; <a class="struct" href="../chrono/naive/struct.NaiveTime.html" title="struct chrono::naive::NaiveTime">NaiveTime</a></code></span><span class='out-of-band'><div class='ghost'></div><a class='srclink' href='../src/chrono/naive/time.rs.html#1124-1126' title='goto source code'>[src]</a></span></h4>
<div class='docblock'><p>Performs the <code>-</code> operation.</p>
</div></div><h3 id='impl-SubAssign%3COldDuration%3E-1' class='impl'><span class='in-band'><code>impl <a class="trait" href="https://doc.rust-lang.org/nightly/core/ops/arith/trait.SubAssign.html" title="trait core::ops::arith::SubAssign">SubAssign</a>&lt;<a class="struct" href="../chrono/struct.Duration.html" title="struct chrono::Duration">OldDuration</a>&gt; for <a class="struct" href="../chrono/naive/struct.NaiveTime.html" title="struct chrono::naive::NaiveTime">NaiveTime</a></code><a href='#impl-SubAssign%3COldDuration%3E-1' class='anchor'></a></span><span class='out-of-band'><div class='ghost'></div><a class='srclink' href='../src/chrono/naive/time.rs.html#1129-1134' title='goto source code'>[src]</a></span></h3>
<div class='impl-items'><h4 id='method.sub_assign-1' class="method"><span id='sub_assign.v-1' class='invisible'><code>fn <a href='https://doc.rust-lang.org/nightly/core/ops/arith/trait.SubAssign.html#tymethod.sub_assign' class='fnname'>sub_assign</a>(&amp;mut self, rhs: <a class="struct" href="../chrono/struct.Duration.html" title="struct chrono::Duration">OldDuration</a>)</code></span><span class='out-of-band'><div class='ghost'></div><a class='srclink' href='../src/chrono/naive/time.rs.html#1131-1133' title='goto source code'>[src]</a></span></h4>
<div class='docblock'><p>Performs the <code>-=</code> operation.</p>
</div></div><h3 id='impl-Add%3COldDuration%3E-2' class='impl'><span class='in-band'><code>impl <a class="trait" href="https://doc.rust-lang.org/nightly/core/ops/arith/trait.Add.html" title="trait core::ops::arith::Add">Add</a>&lt;<a class="struct" href="../chrono/struct.Duration.html" title="struct chrono::Duration">OldDuration</a>&gt; for <a class="struct" href="../chrono/naive/struct.NaiveDateTime.html" title="struct chrono::naive::NaiveDateTime">NaiveDateTime</a></code><a href='#impl-Add%3COldDuration%3E-2' class='anchor'></a></span><span class='out-of-band'><div class='ghost'></div><a class='srclink' href='../src/chrono/naive/datetime.rs.html#1233-1240' title='goto source code'>[src]</a></span></h3>
<div class='docblock'><p>An addition of <code>Duration</code> to <code>NaiveDateTime</code> yields another <code>NaiveDateTime</code>.</p>
<p>As a part of Chrono's <a href="./struct.NaiveTime.html#leap-second-handling">leap second handling</a>,
the addition assumes that <strong>there is no leap second ever</strong>,
except when the <code>NaiveDateTime</code> itself represents a leap second
in which case the assumption becomes that <strong>there is exactly a single leap second ever</strong>.</p>
<p>Panics on underflow or overflow.
Use <a href="#method.checked_add_signed"><code>NaiveDateTime::checked_add_signed</code></a> to detect that.</p>
<h1 id="example-4" class="section-header"><a href="#example-4">Example</a></h1>
<pre class="rust rust-example-rendered">
<span class="kw">use</span> <span class="ident">chrono</span>::<span class="ident">NaiveDate</span>;
<span class="kw">use</span> <span class="ident">time</span>::<span class="ident">Duration</span>;
<span class="kw">let</span> <span class="ident">from_ymd</span> <span class="op">=</span> <span class="ident">NaiveDate</span>::<span class="ident">from_ymd</span>;
<span class="kw">let</span> <span class="ident">d</span> <span class="op">=</span> <span class="ident">from_ymd</span>(<span class="number">2016</span>, <span class="number">7</span>, <span class="number">8</span>);
<span class="kw">let</span> <span class="ident">hms</span> <span class="op">=</span> <span class="op">|</span><span class="ident">h</span>, <span class="ident">m</span>, <span class="ident">s</span><span class="op">|</span> <span class="ident">d</span>.<span class="ident">and_hms</span>(<span class="ident">h</span>, <span class="ident">m</span>, <span class="ident">s</span>);
<span class="macro">assert_eq</span><span class="macro">!</span>(<span class="ident">hms</span>(<span class="number">3</span>, <span class="number">5</span>, <span class="number">7</span>) <span class="op">+</span> <span class="ident">Duration</span>::<span class="ident">zero</span>(), <span class="ident">hms</span>(<span class="number">3</span>, <span class="number">5</span>, <span class="number">7</span>));
<span class="macro">assert_eq</span><span class="macro">!</span>(<span class="ident">hms</span>(<span class="number">3</span>, <span class="number">5</span>, <span class="number">7</span>) <span class="op">+</span> <span class="ident">Duration</span>::<span class="ident">seconds</span>(<span class="number">1</span>), <span class="ident">hms</span>(<span class="number">3</span>, <span class="number">5</span>, <span class="number">8</span>));
<span class="macro">assert_eq</span><span class="macro">!</span>(<span class="ident">hms</span>(<span class="number">3</span>, <span class="number">5</span>, <span class="number">7</span>) <span class="op">+</span> <span class="ident">Duration</span>::<span class="ident">seconds</span>(<span class="op">-</span><span class="number">1</span>), <span class="ident">hms</span>(<span class="number">3</span>, <span class="number">5</span>, <span class="number">6</span>));
<span class="macro">assert_eq</span><span class="macro">!</span>(<span class="ident">hms</span>(<span class="number">3</span>, <span class="number">5</span>, <span class="number">7</span>) <span class="op">+</span> <span class="ident">Duration</span>::<span class="ident">seconds</span>(<span class="number">3600</span> <span class="op">+</span> <span class="number">60</span>), <span class="ident">hms</span>(<span class="number">4</span>, <span class="number">6</span>, <span class="number">7</span>));
<span class="macro">assert_eq</span><span class="macro">!</span>(<span class="ident">hms</span>(<span class="number">3</span>, <span class="number">5</span>, <span class="number">7</span>) <span class="op">+</span> <span class="ident">Duration</span>::<span class="ident">seconds</span>(<span class="number">86_400</span>),
<span class="ident">from_ymd</span>(<span class="number">2016</span>, <span class="number">7</span>, <span class="number">9</span>).<span class="ident">and_hms</span>(<span class="number">3</span>, <span class="number">5</span>, <span class="number">7</span>));
<span class="macro">assert_eq</span><span class="macro">!</span>(<span class="ident">hms</span>(<span class="number">3</span>, <span class="number">5</span>, <span class="number">7</span>) <span class="op">+</span> <span class="ident">Duration</span>::<span class="ident">days</span>(<span class="number">365</span>),
<span class="ident">from_ymd</span>(<span class="number">2017</span>, <span class="number">7</span>, <span class="number">8</span>).<span class="ident">and_hms</span>(<span class="number">3</span>, <span class="number">5</span>, <span class="number">7</span>));
<span class="kw">let</span> <span class="ident">hmsm</span> <span class="op">=</span> <span class="op">|</span><span class="ident">h</span>, <span class="ident">m</span>, <span class="ident">s</span>, <span class="ident">milli</span><span class="op">|</span> <span class="ident">d</span>.<span class="ident">and_hms_milli</span>(<span class="ident">h</span>, <span class="ident">m</span>, <span class="ident">s</span>, <span class="ident">milli</span>);
<span class="macro">assert_eq</span><span class="macro">!</span>(<span class="ident">hmsm</span>(<span class="number">3</span>, <span class="number">5</span>, <span class="number">7</span>, <span class="number">980</span>) <span class="op">+</span> <span class="ident">Duration</span>::<span class="ident">milliseconds</span>(<span class="number">450</span>), <span class="ident">hmsm</span>(<span class="number">3</span>, <span class="number">5</span>, <span class="number">8</span>, <span class="number">430</span>));</pre>
<p>Leap seconds are handled,
but the addition assumes that it is the only leap second happened.</p>
<pre class="rust rust-example-rendered">
<span class="kw">let</span> <span class="ident">leap</span> <span class="op">=</span> <span class="ident">hmsm</span>(<span class="number">3</span>, <span class="number">5</span>, <span class="number">59</span>, <span class="number">1_300</span>);
<span class="macro">assert_eq</span><span class="macro">!</span>(<span class="ident">leap</span> <span class="op">+</span> <span class="ident">Duration</span>::<span class="ident">zero</span>(), <span class="ident">hmsm</span>(<span class="number">3</span>, <span class="number">5</span>, <span class="number">59</span>, <span class="number">1_300</span>));
<span class="macro">assert_eq</span><span class="macro">!</span>(<span class="ident">leap</span> <span class="op">+</span> <span class="ident">Duration</span>::<span class="ident">milliseconds</span>(<span class="op">-</span><span class="number">500</span>), <span class="ident">hmsm</span>(<span class="number">3</span>, <span class="number">5</span>, <span class="number">59</span>, <span class="number">800</span>));
<span class="macro">assert_eq</span><span class="macro">!</span>(<span class="ident">leap</span> <span class="op">+</span> <span class="ident">Duration</span>::<span class="ident">milliseconds</span>(<span class="number">500</span>), <span class="ident">hmsm</span>(<span class="number">3</span>, <span class="number">5</span>, <span class="number">59</span>, <span class="number">1_800</span>));
<span class="macro">assert_eq</span><span class="macro">!</span>(<span class="ident">leap</span> <span class="op">+</span> <span class="ident">Duration</span>::<span class="ident">milliseconds</span>(<span class="number">800</span>), <span class="ident">hmsm</span>(<span class="number">3</span>, <span class="number">6</span>, <span class="number">0</span>, <span class="number">100</span>));
<span class="macro">assert_eq</span><span class="macro">!</span>(<span class="ident">leap</span> <span class="op">+</span> <span class="ident">Duration</span>::<span class="ident">seconds</span>(<span class="number">10</span>), <span class="ident">hmsm</span>(<span class="number">3</span>, <span class="number">6</span>, <span class="number">9</span>, <span class="number">300</span>));
<span class="macro">assert_eq</span><span class="macro">!</span>(<span class="ident">leap</span> <span class="op">+</span> <span class="ident">Duration</span>::<span class="ident">seconds</span>(<span class="op">-</span><span class="number">10</span>), <span class="ident">hmsm</span>(<span class="number">3</span>, <span class="number">5</span>, <span class="number">50</span>, <span class="number">300</span>));
<span class="macro">assert_eq</span><span class="macro">!</span>(<span class="ident">leap</span> <span class="op">+</span> <span class="ident">Duration</span>::<span class="ident">days</span>(<span class="number">1</span>),
<span class="ident">from_ymd</span>(<span class="number">2016</span>, <span class="number">7</span>, <span class="number">9</span>).<span class="ident">and_hms_milli</span>(<span class="number">3</span>, <span class="number">5</span>, <span class="number">59</span>, <span class="number">300</span>));</pre>
</div><div class='impl-items'><h4 id='associatedtype.Output-15' class="type"><span id='Output.t-15' class='invisible'><code>type <a href='https://doc.rust-lang.org/nightly/core/ops/arith/trait.Add.html#associatedtype.Output' class="type">Output</a> = <a class="struct" href="../chrono/naive/struct.NaiveDateTime.html" title="struct chrono::naive::NaiveDateTime">NaiveDateTime</a></code></span></h4>
<div class='docblock'><p>The resulting type after applying the <code>+</code> operator.</p>
</div><h4 id='method.add-6' class="method"><span id='add.v-6' class='invisible'><code>fn <a href='https://doc.rust-lang.org/nightly/core/ops/arith/trait.Add.html#tymethod.add' class='fnname'>add</a>(self, rhs: <a class="struct" href="../chrono/struct.Duration.html" title="struct chrono::Duration">OldDuration</a>) -&gt; <a class="struct" href="../chrono/naive/struct.NaiveDateTime.html" title="struct chrono::naive::NaiveDateTime">NaiveDateTime</a></code></span><span class='out-of-band'><div class='ghost'></div><a class='srclink' href='../src/chrono/naive/datetime.rs.html#1237-1239' title='goto source code'>[src]</a></span></h4>
<div class='docblock'><p>Performs the <code>+</code> operation.</p>
</div></div><h3 id='impl-AddAssign%3COldDuration%3E-2' class='impl'><span class='in-band'><code>impl <a class="trait" href="https://doc.rust-lang.org/nightly/core/ops/arith/trait.AddAssign.html" title="trait core::ops::arith::AddAssign">AddAssign</a>&lt;<a class="struct" href="../chrono/struct.Duration.html" title="struct chrono::Duration">OldDuration</a>&gt; for <a class="struct" href="../chrono/naive/struct.NaiveDateTime.html" title="struct chrono::naive::NaiveDateTime">NaiveDateTime</a></code><a href='#impl-AddAssign%3COldDuration%3E-2' class='anchor'></a></span><span class='out-of-band'><div class='ghost'></div><a class='srclink' href='../src/chrono/naive/datetime.rs.html#1242-1247' title='goto source code'>[src]</a></span></h3>
<div class='impl-items'><h4 id='method.add_assign-2' class="method"><span id='add_assign.v-2' class='invisible'><code>fn <a href='https://doc.rust-lang.org/nightly/core/ops/arith/trait.AddAssign.html#tymethod.add_assign' class='fnname'>add_assign</a>(&amp;mut self, rhs: <a class="struct" href="../chrono/struct.Duration.html" title="struct chrono::Duration">OldDuration</a>)</code></span><span class='out-of-band'><div class='ghost'></div><a class='srclink' href='../src/chrono/naive/datetime.rs.html#1244-1246' title='goto source code'>[src]</a></span></h4>
<div class='docblock'><p>Performs the <code>+=</code> operation.</p>
</div></div><h3 id='impl-Sub%3COldDuration%3E-2' class='impl'><span class='in-band'><code>impl <a class="trait" href="https://doc.rust-lang.org/nightly/core/ops/arith/trait.Sub.html" title="trait core::ops::arith::Sub">Sub</a>&lt;<a class="struct" href="../chrono/struct.Duration.html" title="struct chrono::Duration">OldDuration</a>&gt; for <a class="struct" href="../chrono/naive/struct.NaiveDateTime.html" title="struct chrono::naive::NaiveDateTime">NaiveDateTime</a></code><a href='#impl-Sub%3COldDuration%3E-2' class='anchor'></a></span><span class='out-of-band'><div class='ghost'></div><a class='srclink' href='../src/chrono/naive/datetime.rs.html#1303-1310' title='goto source code'>[src]</a></span></h3>
<div class='docblock'><p>A subtraction of <code>Duration</code> from <code>NaiveDateTime</code> yields another <code>NaiveDateTime</code>.
It is same to the addition with a negated <code>Duration</code>.</p>
<p>As a part of Chrono's <a href="./struct.NaiveTime.html#leap-second-handling">leap second handling</a>,
the addition assumes that <strong>there is no leap second ever</strong>,
except when the <code>NaiveDateTime</code> itself represents a leap second
in which case the assumption becomes that <strong>there is exactly a single leap second ever</strong>.</p>
<p>Panics on underflow or overflow.
Use <a href="#method.checked_sub_signed"><code>NaiveDateTime::checked_sub_signed</code></a> to detect that.</p>
<h1 id="example-5" class="section-header"><a href="#example-5">Example</a></h1>
<pre class="rust rust-example-rendered">
<span class="kw">use</span> <span class="ident">chrono</span>::<span class="ident">NaiveDate</span>;
<span class="kw">use</span> <span class="ident">time</span>::<span class="ident">Duration</span>;
<span class="kw">let</span> <span class="ident">from_ymd</span> <span class="op">=</span> <span class="ident">NaiveDate</span>::<span class="ident">from_ymd</span>;
<span class="kw">let</span> <span class="ident">d</span> <span class="op">=</span> <span class="ident">from_ymd</span>(<span class="number">2016</span>, <span class="number">7</span>, <span class="number">8</span>);
<span class="kw">let</span> <span class="ident">hms</span> <span class="op">=</span> <span class="op">|</span><span class="ident">h</span>, <span class="ident">m</span>, <span class="ident">s</span><span class="op">|</span> <span class="ident">d</span>.<span class="ident">and_hms</span>(<span class="ident">h</span>, <span class="ident">m</span>, <span class="ident">s</span>);
<span class="macro">assert_eq</span><span class="macro">!</span>(<span class="ident">hms</span>(<span class="number">3</span>, <span class="number">5</span>, <span class="number">7</span>) <span class="op">-</span> <span class="ident">Duration</span>::<span class="ident">zero</span>(), <span class="ident">hms</span>(<span class="number">3</span>, <span class="number">5</span>, <span class="number">7</span>));
<span class="macro">assert_eq</span><span class="macro">!</span>(<span class="ident">hms</span>(<span class="number">3</span>, <span class="number">5</span>, <span class="number">7</span>) <span class="op">-</span> <span class="ident">Duration</span>::<span class="ident">seconds</span>(<span class="number">1</span>), <span class="ident">hms</span>(<span class="number">3</span>, <span class="number">5</span>, <span class="number">6</span>));
<span class="macro">assert_eq</span><span class="macro">!</span>(<span class="ident">hms</span>(<span class="number">3</span>, <span class="number">5</span>, <span class="number">7</span>) <span class="op">-</span> <span class="ident">Duration</span>::<span class="ident">seconds</span>(<span class="op">-</span><span class="number">1</span>), <span class="ident">hms</span>(<span class="number">3</span>, <span class="number">5</span>, <span class="number">8</span>));
<span class="macro">assert_eq</span><span class="macro">!</span>(<span class="ident">hms</span>(<span class="number">3</span>, <span class="number">5</span>, <span class="number">7</span>) <span class="op">-</span> <span class="ident">Duration</span>::<span class="ident">seconds</span>(<span class="number">3600</span> <span class="op">+</span> <span class="number">60</span>), <span class="ident">hms</span>(<span class="number">2</span>, <span class="number">4</span>, <span class="number">7</span>));
<span class="macro">assert_eq</span><span class="macro">!</span>(<span class="ident">hms</span>(<span class="number">3</span>, <span class="number">5</span>, <span class="number">7</span>) <span class="op">-</span> <span class="ident">Duration</span>::<span class="ident">seconds</span>(<span class="number">86_400</span>),
<span class="ident">from_ymd</span>(<span class="number">2016</span>, <span class="number">7</span>, <span class="number">7</span>).<span class="ident">and_hms</span>(<span class="number">3</span>, <span class="number">5</span>, <span class="number">7</span>));
<span class="macro">assert_eq</span><span class="macro">!</span>(<span class="ident">hms</span>(<span class="number">3</span>, <span class="number">5</span>, <span class="number">7</span>) <span class="op">-</span> <span class="ident">Duration</span>::<span class="ident">days</span>(<span class="number">365</span>),
<span class="ident">from_ymd</span>(<span class="number">2015</span>, <span class="number">7</span>, <span class="number">9</span>).<span class="ident">and_hms</span>(<span class="number">3</span>, <span class="number">5</span>, <span class="number">7</span>));
<span class="kw">let</span> <span class="ident">hmsm</span> <span class="op">=</span> <span class="op">|</span><span class="ident">h</span>, <span class="ident">m</span>, <span class="ident">s</span>, <span class="ident">milli</span><span class="op">|</span> <span class="ident">d</span>.<span class="ident">and_hms_milli</span>(<span class="ident">h</span>, <span class="ident">m</span>, <span class="ident">s</span>, <span class="ident">milli</span>);
<span class="macro">assert_eq</span><span class="macro">!</span>(<span class="ident">hmsm</span>(<span class="number">3</span>, <span class="number">5</span>, <span class="number">7</span>, <span class="number">450</span>) <span class="op">-</span> <span class="ident">Duration</span>::<span class="ident">milliseconds</span>(<span class="number">670</span>), <span class="ident">hmsm</span>(<span class="number">3</span>, <span class="number">5</span>, <span class="number">6</span>, <span class="number">780</span>));</pre>
<p>Leap seconds are handled,
but the subtraction assumes that it is the only leap second happened.</p>
<pre class="rust rust-example-rendered">
<span class="kw">let</span> <span class="ident">leap</span> <span class="op">=</span> <span class="ident">hmsm</span>(<span class="number">3</span>, <span class="number">5</span>, <span class="number">59</span>, <span class="number">1_300</span>);
<span class="macro">assert_eq</span><span class="macro">!</span>(<span class="ident">leap</span> <span class="op">-</span> <span class="ident">Duration</span>::<span class="ident">zero</span>(), <span class="ident">hmsm</span>(<span class="number">3</span>, <span class="number">5</span>, <span class="number">59</span>, <span class="number">1_300</span>));
<span class="macro">assert_eq</span><span class="macro">!</span>(<span class="ident">leap</span> <span class="op">-</span> <span class="ident">Duration</span>::<span class="ident">milliseconds</span>(<span class="number">200</span>), <span class="ident">hmsm</span>(<span class="number">3</span>, <span class="number">5</span>, <span class="number">59</span>, <span class="number">1_100</span>));
<span class="macro">assert_eq</span><span class="macro">!</span>(<span class="ident">leap</span> <span class="op">-</span> <span class="ident">Duration</span>::<span class="ident">milliseconds</span>(<span class="number">500</span>), <span class="ident">hmsm</span>(<span class="number">3</span>, <span class="number">5</span>, <span class="number">59</span>, <span class="number">800</span>));
<span class="macro">assert_eq</span><span class="macro">!</span>(<span class="ident">leap</span> <span class="op">-</span> <span class="ident">Duration</span>::<span class="ident">seconds</span>(<span class="number">60</span>), <span class="ident">hmsm</span>(<span class="number">3</span>, <span class="number">5</span>, <span class="number">0</span>, <span class="number">300</span>));
<span class="macro">assert_eq</span><span class="macro">!</span>(<span class="ident">leap</span> <span class="op">-</span> <span class="ident">Duration</span>::<span class="ident">days</span>(<span class="number">1</span>),
<span class="ident">from_ymd</span>(<span class="number">2016</span>, <span class="number">7</span>, <span class="number">7</span>).<span class="ident">and_hms_milli</span>(<span class="number">3</span>, <span class="number">6</span>, <span class="number">0</span>, <span class="number">300</span>));</pre>
</div><div class='impl-items'><h4 id='associatedtype.Output-16' class="type"><span id='Output.t-16' class='invisible'><code>type <a href='https://doc.rust-lang.org/nightly/core/ops/arith/trait.Sub.html#associatedtype.Output' class="type">Output</a> = <a class="struct" href="../chrono/naive/struct.NaiveDateTime.html" title="struct chrono::naive::NaiveDateTime">NaiveDateTime</a></code></span></h4>
<div class='docblock'><p>The resulting type after applying the <code>-</code> operator.</p>
</div><h4 id='method.sub-6' class="method"><span id='sub.v-6' class='invisible'><code>fn <a href='https://doc.rust-lang.org/nightly/core/ops/arith/trait.Sub.html#tymethod.sub' class='fnname'>sub</a>(self, rhs: <a class="struct" href="../chrono/struct.Duration.html" title="struct chrono::Duration">OldDuration</a>) -&gt; <a class="struct" href="../chrono/naive/struct.NaiveDateTime.html" title="struct chrono::naive::NaiveDateTime">NaiveDateTime</a></code></span><span class='out-of-band'><div class='ghost'></div><a class='srclink' href='../src/chrono/naive/datetime.rs.html#1307-1309' title='goto source code'>[src]</a></span></h4>
<div class='docblock'><p>Performs the <code>-</code> operation.</p>
</div></div><h3 id='impl-SubAssign%3COldDuration%3E-2' class='impl'><span class='in-band'><code>impl <a class="trait" href="https://doc.rust-lang.org/nightly/core/ops/arith/trait.SubAssign.html" title="trait core::ops::arith::SubAssign">SubAssign</a>&lt;<a class="struct" href="../chrono/struct.Duration.html" title="struct chrono::Duration">OldDuration</a>&gt; for <a class="struct" href="../chrono/naive/struct.NaiveDateTime.html" title="struct chrono::naive::NaiveDateTime">NaiveDateTime</a></code><a href='#impl-SubAssign%3COldDuration%3E-2' class='anchor'></a></span><span class='out-of-band'><div class='ghost'></div><a class='srclink' href='../src/chrono/naive/datetime.rs.html#1312-1317' title='goto source code'>[src]</a></span></h3>
<div class='impl-items'><h4 id='method.sub_assign-2' class="method"><span id='sub_assign.v-2' class='invisible'><code>fn <a href='https://doc.rust-lang.org/nightly/core/ops/arith/trait.SubAssign.html#tymethod.sub_assign' class='fnname'>sub_assign</a>(&amp;mut self, rhs: <a class="struct" href="../chrono/struct.Duration.html" title="struct chrono::Duration">OldDuration</a>)</code></span><span class='out-of-band'><div class='ghost'></div><a class='srclink' href='../src/chrono/naive/datetime.rs.html#1314-1316' title='goto source code'>[src]</a></span></h4>
<div class='docblock'><p>Performs the <code>-=</code> operation.</p>
</div></div><h3 id='impl-Add%3COldDuration%3E-3' class='impl'><span class='in-band'><code>impl&lt;Tz:&nbsp;<a class="trait" href="../chrono/offset/trait.TimeZone.html" title="trait chrono::offset::TimeZone">TimeZone</a>&gt; <a class="trait" href="https://doc.rust-lang.org/nightly/core/ops/arith/trait.Add.html" title="trait core::ops::arith::Add">Add</a>&lt;<a class="struct" href="../chrono/struct.Duration.html" title="struct chrono::Duration">OldDuration</a>&gt; for <a class="struct" href="../chrono/struct.Date.html" title="struct chrono::Date">Date</a>&lt;Tz&gt;</code><a href='#impl-Add%3COldDuration%3E-3' class='anchor'></a></span><span class='out-of-band'><div class='ghost'></div><a class='srclink' href='../src/chrono/date.rs.html#345-352' title='goto source code'>[src]</a></span></h3>
<div class='impl-items'><h4 id='associatedtype.Output-17' class="type"><span id='Output.t-17' class='invisible'><code>type <a href='https://doc.rust-lang.org/nightly/core/ops/arith/trait.Add.html#associatedtype.Output' class="type">Output</a> = <a class="struct" href="../chrono/struct.Date.html" title="struct chrono::Date">Date</a>&lt;Tz&gt;</code></span></h4>
<div class='docblock'><p>The resulting type after applying the <code>+</code> operator.</p>
</div><h4 id='method.add-7' class="method"><span id='add.v-7' class='invisible'><code>fn <a href='https://doc.rust-lang.org/nightly/core/ops/arith/trait.Add.html#tymethod.add' class='fnname'>add</a>(self, rhs: <a class="struct" href="../chrono/struct.Duration.html" title="struct chrono::Duration">OldDuration</a>) -&gt; <a class="struct" href="../chrono/struct.Date.html" title="struct chrono::Date">Date</a>&lt;Tz&gt;</code></span><span class='out-of-band'><div class='ghost'></div><a class='srclink' href='../src/chrono/date.rs.html#349-351' title='goto source code'>[src]</a></span></h4>
<div class='docblock'><p>Performs the <code>+</code> operation.</p>
</div></div><h3 id='impl-Sub%3COldDuration%3E-3' class='impl'><span class='in-band'><code>impl&lt;Tz:&nbsp;<a class="trait" href="../chrono/offset/trait.TimeZone.html" title="trait chrono::offset::TimeZone">TimeZone</a>&gt; <a class="trait" href="https://doc.rust-lang.org/nightly/core/ops/arith/trait.Sub.html" title="trait core::ops::arith::Sub">Sub</a>&lt;<a class="struct" href="../chrono/struct.Duration.html" title="struct chrono::Duration">OldDuration</a>&gt; for <a class="struct" href="../chrono/struct.Date.html" title="struct chrono::Date">Date</a>&lt;Tz&gt;</code><a href='#impl-Sub%3COldDuration%3E-3' class='anchor'></a></span><span class='out-of-band'><div class='ghost'></div><a class='srclink' href='../src/chrono/date.rs.html#354-361' title='goto source code'>[src]</a></span></h3>
<div class='impl-items'><h4 id='associatedtype.Output-18' class="type"><span id='Output.t-18' class='invisible'><code>type <a href='https://doc.rust-lang.org/nightly/core/ops/arith/trait.Sub.html#associatedtype.Output' class="type">Output</a> = <a class="struct" href="../chrono/struct.Date.html" title="struct chrono::Date">Date</a>&lt;Tz&gt;</code></span></h4>
<div class='docblock'><p>The resulting type after applying the <code>-</code> operator.</p>
</div><h4 id='method.sub-7' class="method"><span id='sub.v-7' class='invisible'><code>fn <a href='https://doc.rust-lang.org/nightly/core/ops/arith/trait.Sub.html#tymethod.sub' class='fnname'>sub</a>(self, rhs: <a class="struct" href="../chrono/struct.Duration.html" title="struct chrono::Duration">OldDuration</a>) -&gt; <a class="struct" href="../chrono/struct.Date.html" title="struct chrono::Date">Date</a>&lt;Tz&gt;</code></span><span class='out-of-band'><div class='ghost'></div><a class='srclink' href='../src/chrono/date.rs.html#358-360' title='goto source code'>[src]</a></span></h4>
<div class='docblock'><p>Performs the <code>-</code> operation.</p>
</div></div><h3 id='impl-Add%3COldDuration%3E-4' class='impl'><span class='in-band'><code>impl&lt;Tz:&nbsp;<a class="trait" href="../chrono/offset/trait.TimeZone.html" title="trait chrono::offset::TimeZone">TimeZone</a>&gt; <a class="trait" href="https://doc.rust-lang.org/nightly/core/ops/arith/trait.Add.html" title="trait core::ops::arith::Add">Add</a>&lt;<a class="struct" href="../chrono/struct.Duration.html" title="struct chrono::Duration">OldDuration</a>&gt; for <a class="struct" href="../chrono/struct.DateTime.html" title="struct chrono::DateTime">DateTime</a>&lt;Tz&gt;</code><a href='#impl-Add%3COldDuration%3E-4' class='anchor'></a></span><span class='out-of-band'><div class='ghost'></div><a class='srclink' href='../src/chrono/datetime.rs.html#496-503' title='goto source code'>[src]</a></span></h3>
<div class='impl-items'><h4 id='associatedtype.Output-19' class="type"><span id='Output.t-19' class='invisible'><code>type <a href='https://doc.rust-lang.org/nightly/core/ops/arith/trait.Add.html#associatedtype.Output' class="type">Output</a> = <a class="struct" href="../chrono/struct.DateTime.html" title="struct chrono::DateTime">DateTime</a>&lt;Tz&gt;</code></span></h4>
<div class='docblock'><p>The resulting type after applying the <code>+</code> operator.</p>
</div><h4 id='method.add-8' class="method"><span id='add.v-8' class='invisible'><code>fn <a href='https://doc.rust-lang.org/nightly/core/ops/arith/trait.Add.html#tymethod.add' class='fnname'>add</a>(self, rhs: <a class="struct" href="../chrono/struct.Duration.html" title="struct chrono::Duration">OldDuration</a>) -&gt; <a class="struct" href="../chrono/struct.DateTime.html" title="struct chrono::DateTime">DateTime</a>&lt;Tz&gt;</code></span><span class='out-of-band'><div class='ghost'></div><a class='srclink' href='../src/chrono/datetime.rs.html#500-502' title='goto source code'>[src]</a></span></h4>
<div class='docblock'><p>Performs the <code>+</code> operation.</p>
</div></div><h3 id='impl-Sub%3COldDuration%3E-4' class='impl'><span class='in-band'><code>impl&lt;Tz:&nbsp;<a class="trait" href="../chrono/offset/trait.TimeZone.html" title="trait chrono::offset::TimeZone">TimeZone</a>&gt; <a class="trait" href="https://doc.rust-lang.org/nightly/core/ops/arith/trait.Sub.html" title="trait core::ops::arith::Sub">Sub</a>&lt;<a class="struct" href="../chrono/struct.Duration.html" title="struct chrono::Duration">OldDuration</a>&gt; for <a class="struct" href="../chrono/struct.DateTime.html" title="struct chrono::DateTime">DateTime</a>&lt;Tz&gt;</code><a href='#impl-Sub%3COldDuration%3E-4' class='anchor'></a></span><span class='out-of-band'><div class='ghost'></div><a class='srclink' href='../src/chrono/datetime.rs.html#505-512' title='goto source code'>[src]</a></span></h3>
<div class='impl-items'><h4 id='associatedtype.Output-20' class="type"><span id='Output.t-20' class='invisible'><code>type <a href='https://doc.rust-lang.org/nightly/core/ops/arith/trait.Sub.html#associatedtype.Output' class="type">Output</a> = <a class="struct" href="../chrono/struct.DateTime.html" title="struct chrono::DateTime">DateTime</a>&lt;Tz&gt;</code></span></h4>
<div class='docblock'><p>The resulting type after applying the <code>-</code> operator.</p>
</div><h4 id='method.sub-8' class="method"><span id='sub.v-8' class='invisible'><code>fn <a href='https://doc.rust-lang.org/nightly/core/ops/arith/trait.Sub.html#tymethod.sub' class='fnname'>sub</a>(self, rhs: <a class="struct" href="../chrono/struct.Duration.html" title="struct chrono::Duration">OldDuration</a>) -&gt; <a class="struct" href="../chrono/struct.DateTime.html" title="struct chrono::DateTime">DateTime</a>&lt;Tz&gt;</code></span><span class='out-of-band'><div class='ghost'></div><a class='srclink' href='../src/chrono/datetime.rs.html#509-511' title='goto source code'>[src]</a></span></h4>
<div class='docblock'><p>Performs the <code>-</code> operation.</p>
</div></div></section>
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