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<p class='location'>Struct NaiveDateTime</p><div class="block items"><ul><li><a href="#methods">Methods</a></li><li><a href="#implementations">Trait Implementations</a></li></ul></div><p class='location'><a href='../../index.html'>chrono</a>::<wbr><a href='../index.html'>naive</a>::<wbr><a href='index.html'>datetime</a></p><script>window.sidebarCurrent = {name: 'NaiveDateTime', ty: 'struct', relpath: ''};</script><script defer src="sidebar-items.js"></script>
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<h1 class='fqn'><span class='in-band'>Struct <a href='../../index.html'>chrono</a>::<wbr><a href='../index.html'>naive</a>::<wbr><a href='index.html'>datetime</a>::<wbr><a class="struct" href=''>NaiveDateTime</a></span><span class='out-of-band'><span id='render-detail'>
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[<span class='inner'>&#x2212;</span>]
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<pre class='rust struct'>pub struct NaiveDateTime { /* fields omitted */ }</pre><div class='docblock'><p>ISO 8601 combined date and time without timezone.</p>
</div><h2 id='methods'>Methods</h2><h3 class='impl'><span class='in-band'><code>impl <a class="struct" href="../../../chrono/naive/datetime/struct.NaiveDateTime.html" title="struct chrono::naive::datetime::NaiveDateTime">NaiveDateTime</a></code></span><span class='out-of-band'><div class='ghost'></div><a class='srclink' href='../../../src/chrono/naive/datetime.rs.html#26-197' title='goto source code'>[src]</a></span></h3>
<div class='impl-items'><h4 id='method.new' class="method"><span id='new.v' class='invisible'><code>fn <a href='#method.new' class='fnname'>new</a>(date: <a class="struct" href="../../../chrono/naive/date/struct.NaiveDate.html" title="struct chrono::naive::date::NaiveDate">NaiveDate</a>, time: <a class="struct" href="../../../chrono/naive/time/struct.NaiveTime.html" title="struct chrono::naive::time::NaiveTime">NaiveTime</a>) -&gt; <a class="struct" href="../../../chrono/naive/datetime/struct.NaiveDateTime.html" title="struct chrono::naive::datetime::NaiveDateTime">NaiveDateTime</a></code></span></h4>
<div class='docblock'><p>Makes a new <code>NaiveDateTime</code> from date and time components.
Equivalent to <code>date.and_time(time)</code> and many other helper constructors on <code>NaiveDate</code>.</p>
</div><h4 id='method.from_timestamp' class="method"><span id='from_timestamp.v' class='invisible'><code>fn <a href='#method.from_timestamp' class='fnname'>from_timestamp</a>(secs: <a class="primitive" href="https://doc.rust-lang.org/nightly/std/primitive.i64.html">i64</a>, nsecs: <a class="primitive" href="https://doc.rust-lang.org/nightly/std/primitive.u32.html">u32</a>) -&gt; <a class="struct" href="../../../chrono/naive/datetime/struct.NaiveDateTime.html" title="struct chrono::naive::datetime::NaiveDateTime">NaiveDateTime</a></code></span></h4>
<div class='docblock'><p>Makes a new <code>NaiveDateTime</code> from the number of non-leap seconds
since the midnight UTC on January 1, 1970 (aka &quot;UNIX timestamp&quot;)
and the number of nanoseconds since the last whole non-leap second.</p>
<p>Panics on the out-of-range number of seconds and/or invalid nanosecond.</p>
</div><h4 id='method.from_timestamp_opt' class="method"><span id='from_timestamp_opt.v' class='invisible'><code>fn <a href='#method.from_timestamp_opt' class='fnname'>from_timestamp_opt</a>(secs: <a class="primitive" href="https://doc.rust-lang.org/nightly/std/primitive.i64.html">i64</a>, nsecs: <a class="primitive" href="https://doc.rust-lang.org/nightly/std/primitive.u32.html">u32</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/naive/datetime/struct.NaiveDateTime.html" title="struct chrono::naive::datetime::NaiveDateTime">NaiveDateTime</a>&gt;</code></span></h4>
<div class='docblock'><p>Makes a new <code>NaiveDateTime</code> from the number of non-leap seconds
since the midnight UTC on January 1, 1970 (aka &quot;UNIX timestamp&quot;)
and the number of nanoseconds since the last whole non-leap second.</p>
<p>Returns <code>None</code> on the out-of-range number of seconds and/or invalid nanosecond.</p>
</div><h4 id='method.from_num_seconds_from_unix_epoch' class="method"><span id='from_num_seconds_from_unix_epoch.v' class='invisible'><code>fn <a href='#method.from_num_seconds_from_unix_epoch' class='fnname'>from_num_seconds_from_unix_epoch</a>(secs: <a class="primitive" href="https://doc.rust-lang.org/nightly/std/primitive.i64.html">i64</a>, nsecs: <a class="primitive" href="https://doc.rust-lang.org/nightly/std/primitive.u32.html">u32</a>) -&gt; <a class="struct" href="../../../chrono/naive/datetime/struct.NaiveDateTime.html" title="struct chrono::naive::datetime::NaiveDateTime">NaiveDateTime</a></code></span></h4>
<div class='docblock'><p><em>Deprecated:</em> Same to <a href="#method.from_timestamp"><code>NaiveDateTime::from_timestamp</code></a>.</p>
</div><h4 id='method.from_num_seconds_from_unix_epoch_opt' class="method"><span id='from_num_seconds_from_unix_epoch_opt.v' class='invisible'><code>fn <a href='#method.from_num_seconds_from_unix_epoch_opt' class='fnname'>from_num_seconds_from_unix_epoch_opt</a>(<br>&nbsp;&nbsp;&nbsp;&nbsp;secs: <a class="primitive" href="https://doc.rust-lang.org/nightly/std/primitive.i64.html">i64</a>, <br>&nbsp;&nbsp;&nbsp;&nbsp;nsecs: <a class="primitive" href="https://doc.rust-lang.org/nightly/std/primitive.u32.html">u32</a><br>) -&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/naive/datetime/struct.NaiveDateTime.html" title="struct chrono::naive::datetime::NaiveDateTime">NaiveDateTime</a>&gt;</code></span></h4>
<div class='docblock'><p><em>Deprecated:</em> Same to <a href="#method.from_timestamp_opt"><code>NaiveDateTime::from_timestamp_opt</code></a>.</p>
</div><h4 id='method.parse_from_str' class="method"><span id='parse_from_str.v' class='invisible'><code>fn <a href='#method.parse_from_str' class='fnname'>parse_from_str</a>(s: &amp;<a class="primitive" href="https://doc.rust-lang.org/nightly/std/primitive.str.html">str</a>, fmt: &amp;<a class="primitive" href="https://doc.rust-lang.org/nightly/std/primitive.str.html">str</a>) -&gt; <a class="type" href="../../../chrono/format/type.ParseResult.html" title="type chrono::format::ParseResult">ParseResult</a>&lt;<a class="struct" href="../../../chrono/naive/datetime/struct.NaiveDateTime.html" title="struct chrono::naive::datetime::NaiveDateTime">NaiveDateTime</a>&gt;</code></span></h4>
<div class='docblock'><p>Parses a string with the specified format string and returns a new <code>NaiveDateTime</code>.
See the <a href="../../format/strftime/index.html"><code>format::strftime</code> module</a>
on the supported escape sequences.</p>
</div><h4 id='method.date' class="method"><span id='date.v' class='invisible'><code>fn <a href='#method.date' class='fnname'>date</a>(&amp;self) -&gt; <a class="struct" href="../../../chrono/naive/date/struct.NaiveDate.html" title="struct chrono::naive::date::NaiveDate">NaiveDate</a></code></span></h4>
<div class='docblock'><p>Retrieves a date component.</p>
</div><h4 id='method.time' class="method"><span id='time.v' class='invisible'><code>fn <a href='#method.time' class='fnname'>time</a>(&amp;self) -&gt; <a class="struct" href="../../../chrono/naive/time/struct.NaiveTime.html" title="struct chrono::naive::time::NaiveTime">NaiveTime</a></code></span></h4>
<div class='docblock'><p>Retrieves a time component.</p>
</div><h4 id='method.timestamp' class="method"><span id='timestamp.v' class='invisible'><code>fn <a href='#method.timestamp' class='fnname'>timestamp</a>(&amp;self) -&gt; <a class="primitive" href="https://doc.rust-lang.org/nightly/std/primitive.i64.html">i64</a></code></span></h4>
<div class='docblock'><p>Returns the number of non-leap seconds since the midnight on January 1, 1970.</p>
<p>Note that this does <em>not</em> account for the timezone!
The true &quot;UNIX timestamp&quot; would count seconds since the midnight <em>UTC</em> on the epoch.</p>
</div><h4 id='method.timestamp_subsec_millis' class="method"><span id='timestamp_subsec_millis.v' class='invisible'><code>fn <a href='#method.timestamp_subsec_millis' class='fnname'>timestamp_subsec_millis</a>(&amp;self) -&gt; <a class="primitive" href="https://doc.rust-lang.org/nightly/std/primitive.u32.html">u32</a></code></span></h4>
<div class='docblock'><p>Returns the number of milliseconds since the last whole non-leap second.</p>
<p>The return value ranges from 0 to 999,
or for <a href="../time/index.html#leap-second-handling">leap seconds</a>, to 1,999.</p>
</div><h4 id='method.timestamp_subsec_micros' class="method"><span id='timestamp_subsec_micros.v' class='invisible'><code>fn <a href='#method.timestamp_subsec_micros' class='fnname'>timestamp_subsec_micros</a>(&amp;self) -&gt; <a class="primitive" href="https://doc.rust-lang.org/nightly/std/primitive.u32.html">u32</a></code></span></h4>
<div class='docblock'><p>Returns the number of microseconds since the last whole non-leap second.</p>
<p>The return value ranges from 0 to 999,999,
or for <a href="../time/index.html#leap-second-handling">leap seconds</a>, to 1,999,999.</p>
</div><h4 id='method.timestamp_subsec_nanos' class="method"><span id='timestamp_subsec_nanos.v' class='invisible'><code>fn <a href='#method.timestamp_subsec_nanos' class='fnname'>timestamp_subsec_nanos</a>(&amp;self) -&gt; <a class="primitive" href="https://doc.rust-lang.org/nightly/std/primitive.u32.html">u32</a></code></span></h4>
<div class='docblock'><p>Returns the number of nanoseconds since the last whole non-leap second.</p>
<p>The return value ranges from 0 to 999,999,999,
or for <a href="../time/index.html#leap-second-handling">leap seconds</a>, to 1,999,999,999.</p>
</div><h4 id='method.num_seconds_from_unix_epoch' class="method"><span id='num_seconds_from_unix_epoch.v' class='invisible'><code>fn <a href='#method.num_seconds_from_unix_epoch' class='fnname'>num_seconds_from_unix_epoch</a>(&amp;self) -&gt; <a class="primitive" href="https://doc.rust-lang.org/nightly/std/primitive.i64.html">i64</a></code></span></h4>
<div class='docblock'><p><em>Deprecated:</em> Same to <a href="#method.timestamp"><code>NaiveDateTime::timestamp</code></a>.</p>
</div><h4 id='method.checked_add' class="method"><span id='checked_add.v' class='invisible'><code>fn <a href='#method.checked_add' class='fnname'>checked_add</a>(self, rhs: <a class="struct" href="../../../chrono/duration/struct.Duration.html" title="struct chrono::duration::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/naive/datetime/struct.NaiveDateTime.html" title="struct chrono::naive::datetime::NaiveDateTime">NaiveDateTime</a>&gt;</code></span></h4>
<div class='docblock'><p>Adds given <code>Duration</code> to the current date and time.</p>
<p>Returns <code>None</code> when it will result in overflow.</p>
</div><h4 id='method.checked_sub' class="method"><span id='checked_sub.v' class='invisible'><code>fn <a href='#method.checked_sub' class='fnname'>checked_sub</a>(self, rhs: <a class="struct" href="../../../chrono/duration/struct.Duration.html" title="struct chrono::duration::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/naive/datetime/struct.NaiveDateTime.html" title="struct chrono::naive::datetime::NaiveDateTime">NaiveDateTime</a>&gt;</code></span></h4>
<div class='docblock'><p>Subtracts given <code>Duration</code> from the current date and time.</p>
<p>Returns <code>None</code> when it will result in overflow.</p>
</div><h4 id='method.format_with_items' class="method"><span id='format_with_items.v' class='invisible'><code>fn <a href='#method.format_with_items' class='fnname'>format_with_items</a>&lt;'a, I&gt;(&amp;self, items: I) -&gt; <a class="struct" href="../../../chrono/format/struct.DelayedFormat.html" title="struct chrono::format::DelayedFormat">DelayedFormat</a>&lt;I&gt; <span class="where fmt-newline">where<br>&nbsp;&nbsp;&nbsp;&nbsp;I: <a class="trait" href="https://doc.rust-lang.org/nightly/core/iter/iterator/trait.Iterator.html" title="trait core::iter::iterator::Iterator">Iterator</a>&lt;Item = <a class="enum" href="../../../chrono/format/enum.Item.html" title="enum chrono::format::Item">Item</a>&lt;'a&gt;&gt; + <a class="trait" href="https://doc.rust-lang.org/nightly/core/clone/trait.Clone.html" title="trait core::clone::Clone">Clone</a>,&nbsp;</span></code></span></h4>
<div class='docblock'><p>Formats the combined date and time with the specified formatting items.</p>
</div><h4 id='method.format' class="method"><span id='format.v' class='invisible'><code>fn <a href='#method.format' class='fnname'>format</a>&lt;'a&gt;(&amp;self, fmt: &amp;'a <a class="primitive" href="https://doc.rust-lang.org/nightly/std/primitive.str.html">str</a>) -&gt; <a class="struct" href="../../../chrono/format/struct.DelayedFormat.html" title="struct chrono::format::DelayedFormat">DelayedFormat</a>&lt;<a class="struct" href="../../../chrono/format/strftime/struct.StrftimeItems.html" title="struct chrono::format::strftime::StrftimeItems">StrftimeItems</a>&lt;'a&gt;&gt;</code></span></h4>
<div class='docblock'><p>Formats the combined date and time with the specified format string.
See the <a href="../../format/strftime/index.html"><code>format::strftime</code> module</a>
on the supported escape sequences.</p>
</div></div><h2 id='implementations'>Trait Implementations</h2><h3 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> for <a class="struct" href="../../../chrono/naive/datetime/struct.NaiveDateTime.html" title="struct chrono::naive::datetime::NaiveDateTime">NaiveDateTime</a></code></span><span class='out-of-band'><div class='ghost'></div><a class='srclink' href='../../../src/chrono/naive/datetime.rs.html#20' 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/naive/datetime/struct.NaiveDateTime.html" title="struct chrono::naive::datetime::NaiveDateTime">NaiveDateTime</a>) -&gt; <a class="primitive" href="https://doc.rust-lang.org/nightly/std/primitive.bool.html">bool</a></code></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/naive/datetime/struct.NaiveDateTime.html" title="struct chrono::naive::datetime::NaiveDateTime">NaiveDateTime</a>) -&gt; <a class="primitive" href="https://doc.rust-lang.org/nightly/std/primitive.bool.html">bool</a></code></span></h4>
<div class='docblock'><p>This method tests for <code>!=</code>.</p>
</div></div><h3 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/naive/datetime/struct.NaiveDateTime.html" title="struct chrono::naive::datetime::NaiveDateTime">NaiveDateTime</a></code></span><span class='out-of-band'><div class='ghost'></div><a class='srclink' href='../../../src/chrono/naive/datetime.rs.html#20' title='goto source code'>[src]</a></span></h3>
<div class='impl-items'></div><h3 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> for <a class="struct" href="../../../chrono/naive/datetime/struct.NaiveDateTime.html" title="struct chrono::naive::datetime::NaiveDateTime">NaiveDateTime</a></code></span><span class='out-of-band'><div class='ghost'></div><a class='srclink' href='../../../src/chrono/naive/datetime.rs.html#20' 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/naive/datetime/struct.NaiveDateTime.html" title="struct chrono::naive::datetime::NaiveDateTime">NaiveDateTime</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></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/naive/datetime/struct.NaiveDateTime.html" title="struct chrono::naive::datetime::NaiveDateTime">NaiveDateTime</a>) -&gt; <a class="primitive" href="https://doc.rust-lang.org/nightly/std/primitive.bool.html">bool</a></code></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/naive/datetime/struct.NaiveDateTime.html" title="struct chrono::naive::datetime::NaiveDateTime">NaiveDateTime</a>) -&gt; <a class="primitive" href="https://doc.rust-lang.org/nightly/std/primitive.bool.html">bool</a></code></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/naive/datetime/struct.NaiveDateTime.html" title="struct chrono::naive::datetime::NaiveDateTime">NaiveDateTime</a>) -&gt; <a class="primitive" href="https://doc.rust-lang.org/nightly/std/primitive.bool.html">bool</a></code></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/naive/datetime/struct.NaiveDateTime.html" title="struct chrono::naive::datetime::NaiveDateTime">NaiveDateTime</a>) -&gt; <a class="primitive" href="https://doc.rust-lang.org/nightly/std/primitive.bool.html">bool</a></code></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 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/naive/datetime/struct.NaiveDateTime.html" title="struct chrono::naive::datetime::NaiveDateTime">NaiveDateTime</a></code></span><span class='out-of-band'><div class='ghost'></div><a class='srclink' href='../../../src/chrono/naive/datetime.rs.html#20' 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/naive/datetime/struct.NaiveDateTime.html" title="struct chrono::naive::datetime::NaiveDateTime">NaiveDateTime</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></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></h4>
<div class='stability'><div class='stab unstable'><span class=microscope>🔬</span> This is a nightly-only experimental API. (<code>ord_max_min</code>)</div></div><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></h4>
<div class='stability'><div class='stab unstable'><span class=microscope>🔬</span> This is a nightly-only experimental API. (<code>ord_max_min</code>)</div></div><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 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/naive/datetime/struct.NaiveDateTime.html" title="struct chrono::naive::datetime::NaiveDateTime">NaiveDateTime</a></code></span><span class='out-of-band'><div class='ghost'></div><a class='srclink' href='../../../src/chrono/naive/datetime.rs.html#20' title='goto source code'>[src]</a></span></h3>
<div class='impl-items'></div><h3 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/naive/datetime/struct.NaiveDateTime.html" title="struct chrono::naive::datetime::NaiveDateTime">NaiveDateTime</a></code></span><span class='out-of-band'><div class='ghost'></div><a class='srclink' href='../../../src/chrono/naive/datetime.rs.html#20' 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/naive/datetime/struct.NaiveDateTime.html" title="struct chrono::naive::datetime::NaiveDateTime">NaiveDateTime</a></code></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: &amp;Self)</code><div class='since' title='Stable since Rust version 1.0.0'>1.0.0</div></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 class='impl'><span class='in-band'><code>impl <a class="trait" href="../../../chrono/trait.Datelike.html" title="trait chrono::Datelike">Datelike</a> for <a class="struct" href="../../../chrono/naive/datetime/struct.NaiveDateTime.html" title="struct chrono::naive::datetime::NaiveDateTime">NaiveDateTime</a></code></span><span class='out-of-band'><div class='ghost'></div><a class='srclink' href='../../../src/chrono/naive/datetime.rs.html#199-515' title='goto source code'>[src]</a></span></h3>
<div class='impl-items'><h4 id='method.year' class="method"><span id='year.v' class='invisible'><code>fn <a href='../../../chrono/trait.Datelike.html#tymethod.year' class='fnname'>year</a>(&amp;self) -&gt; <a class="primitive" href="https://doc.rust-lang.org/nightly/std/primitive.i32.html">i32</a></code></span></h4>
<div class='docblock'><p>Returns the year number in the <a href="./index.html#calendar-date">calendar date</a>.</p>
<p>See also the <a href="../date/struct.NaiveDate.html#method.year"><code>NaiveDate::year</code></a> method.</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="ident">NaiveDateTime</span>, <span class="ident">Datelike</span>};
<span class="kw">let</span> <span class="ident">dt</span>: <span class="ident">NaiveDateTime</span> <span class="op">=</span> <span class="ident">NaiveDate</span>::<span class="ident">from_ymd</span>(<span class="number">2015</span>, <span class="number">9</span>, <span class="number">25</span>).<span class="ident">and_hms</span>(<span class="number">12</span>, <span class="number">34</span>, <span class="number">56</span>);
<span class="macro">assert_eq</span><span class="macro">!</span>(<span class="ident">dt</span>.<span class="ident">year</span>(), <span class="number">2015</span>);</pre>
</div><h4 id='method.month' class="method"><span id='month.v' class='invisible'><code>fn <a href='../../../chrono/trait.Datelike.html#tymethod.month' class='fnname'>month</a>(&amp;self) -&gt; <a class="primitive" href="https://doc.rust-lang.org/nightly/std/primitive.u32.html">u32</a></code></span></h4>
<div class='docblock'><p>Returns the month number starting from 1.</p>
<p>The return value ranges from 1 to 12.</p>
<p>See also the <a href="../date/struct.NaiveDate.html#method.month"><code>NaiveDate::month</code></a> method.</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="ident">NaiveDateTime</span>, <span class="ident">Datelike</span>};
<span class="kw">let</span> <span class="ident">dt</span>: <span class="ident">NaiveDateTime</span> <span class="op">=</span> <span class="ident">NaiveDate</span>::<span class="ident">from_ymd</span>(<span class="number">2015</span>, <span class="number">9</span>, <span class="number">25</span>).<span class="ident">and_hms</span>(<span class="number">12</span>, <span class="number">34</span>, <span class="number">56</span>);
<span class="macro">assert_eq</span><span class="macro">!</span>(<span class="ident">dt</span>.<span class="ident">month</span>(), <span class="number">9</span>);</pre>
</div><h4 id='method.month0' class="method"><span id='month0.v' class='invisible'><code>fn <a href='../../../chrono/trait.Datelike.html#tymethod.month0' class='fnname'>month0</a>(&amp;self) -&gt; <a class="primitive" href="https://doc.rust-lang.org/nightly/std/primitive.u32.html">u32</a></code></span></h4>
<div class='docblock'><p>Returns the month number starting from 0.</p>
<p>The return value ranges from 0 to 11.</p>
<p>See also the <a href="../date/struct.NaiveDate.html#method.month0"><code>NaiveDate::month0</code></a> method.</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">NaiveDate</span>, <span class="ident">NaiveDateTime</span>, <span class="ident">Datelike</span>};
<span class="kw">let</span> <span class="ident">dt</span>: <span class="ident">NaiveDateTime</span> <span class="op">=</span> <span class="ident">NaiveDate</span>::<span class="ident">from_ymd</span>(<span class="number">2015</span>, <span class="number">9</span>, <span class="number">25</span>).<span class="ident">and_hms</span>(<span class="number">12</span>, <span class="number">34</span>, <span class="number">56</span>);
<span class="macro">assert_eq</span><span class="macro">!</span>(<span class="ident">dt</span>.<span class="ident">month0</span>(), <span class="number">8</span>);</pre>
</div><h4 id='method.day' class="method"><span id='day.v' class='invisible'><code>fn <a href='../../../chrono/trait.Datelike.html#tymethod.day' class='fnname'>day</a>(&amp;self) -&gt; <a class="primitive" href="https://doc.rust-lang.org/nightly/std/primitive.u32.html">u32</a></code></span></h4>
<div class='docblock'><p>Returns the day of month starting from 1.</p>
<p>The return value ranges from 1 to 31. (The last day of month differs by months.)</p>
<p>See also the <a href="../date/struct.NaiveDate.html#method.day"><code>NaiveDate::day</code></a> method.</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">NaiveDate</span>, <span class="ident">NaiveDateTime</span>, <span class="ident">Datelike</span>};
<span class="kw">let</span> <span class="ident">dt</span>: <span class="ident">NaiveDateTime</span> <span class="op">=</span> <span class="ident">NaiveDate</span>::<span class="ident">from_ymd</span>(<span class="number">2015</span>, <span class="number">9</span>, <span class="number">25</span>).<span class="ident">and_hms</span>(<span class="number">12</span>, <span class="number">34</span>, <span class="number">56</span>);
<span class="macro">assert_eq</span><span class="macro">!</span>(<span class="ident">dt</span>.<span class="ident">day</span>(), <span class="number">25</span>);</pre>
</div><h4 id='method.day0' class="method"><span id='day0.v' class='invisible'><code>fn <a href='../../../chrono/trait.Datelike.html#tymethod.day0' class='fnname'>day0</a>(&amp;self) -&gt; <a class="primitive" href="https://doc.rust-lang.org/nightly/std/primitive.u32.html">u32</a></code></span></h4>
<div class='docblock'><p>Returns the day of month starting from 0.</p>
<p>The return value ranges from 0 to 30. (The last day of month differs by months.)</p>
<p>See also the <a href="../date/struct.NaiveDate.html#method.day0"><code>NaiveDate::day0</code></a> method.</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="ident">NaiveDateTime</span>, <span class="ident">Datelike</span>};
<span class="kw">let</span> <span class="ident">dt</span>: <span class="ident">NaiveDateTime</span> <span class="op">=</span> <span class="ident">NaiveDate</span>::<span class="ident">from_ymd</span>(<span class="number">2015</span>, <span class="number">9</span>, <span class="number">25</span>).<span class="ident">and_hms</span>(<span class="number">12</span>, <span class="number">34</span>, <span class="number">56</span>);
<span class="macro">assert_eq</span><span class="macro">!</span>(<span class="ident">dt</span>.<span class="ident">day0</span>(), <span class="number">24</span>);</pre>
</div><h4 id='method.ordinal' class="method"><span id='ordinal.v' class='invisible'><code>fn <a href='../../../chrono/trait.Datelike.html#tymethod.ordinal' class='fnname'>ordinal</a>(&amp;self) -&gt; <a class="primitive" href="https://doc.rust-lang.org/nightly/std/primitive.u32.html">u32</a></code></span></h4>
<div class='docblock'><p>Returns the day of year starting from 1.</p>
<p>The return value ranges from 1 to 366. (The last day of year differs by years.)</p>
<p>See also the <a href="../date/struct.NaiveDate.html#method.ordinal"><code>NaiveDate::ordinal</code></a> method.</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="ident">NaiveDateTime</span>, <span class="ident">Datelike</span>};
<span class="kw">let</span> <span class="ident">dt</span>: <span class="ident">NaiveDateTime</span> <span class="op">=</span> <span class="ident">NaiveDate</span>::<span class="ident">from_ymd</span>(<span class="number">2015</span>, <span class="number">9</span>, <span class="number">25</span>).<span class="ident">and_hms</span>(<span class="number">12</span>, <span class="number">34</span>, <span class="number">56</span>);
<span class="macro">assert_eq</span><span class="macro">!</span>(<span class="ident">dt</span>.<span class="ident">ordinal</span>(), <span class="number">268</span>);</pre>
</div><h4 id='method.ordinal0' class="method"><span id='ordinal0.v' class='invisible'><code>fn <a href='../../../chrono/trait.Datelike.html#tymethod.ordinal0' class='fnname'>ordinal0</a>(&amp;self) -&gt; <a class="primitive" href="https://doc.rust-lang.org/nightly/std/primitive.u32.html">u32</a></code></span></h4>
<div class='docblock'><p>Returns the day of year starting from 0.</p>
<p>The return value ranges from 0 to 365. (The last day of year differs by years.)</p>
<p>See also the <a href="../date/struct.NaiveDate.html#method.ordinal0"><code>NaiveDate::ordinal0</code></a> method.</p>
<h1 id='example-6' class='section-header'><a href='#example-6'>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="ident">NaiveDateTime</span>, <span class="ident">Datelike</span>};
<span class="kw">let</span> <span class="ident">dt</span>: <span class="ident">NaiveDateTime</span> <span class="op">=</span> <span class="ident">NaiveDate</span>::<span class="ident">from_ymd</span>(<span class="number">2015</span>, <span class="number">9</span>, <span class="number">25</span>).<span class="ident">and_hms</span>(<span class="number">12</span>, <span class="number">34</span>, <span class="number">56</span>);
<span class="macro">assert_eq</span><span class="macro">!</span>(<span class="ident">dt</span>.<span class="ident">ordinal0</span>(), <span class="number">267</span>);</pre>
</div><h4 id='method.weekday' class="method"><span id='weekday.v' class='invisible'><code>fn <a href='../../../chrono/trait.Datelike.html#tymethod.weekday' class='fnname'>weekday</a>(&amp;self) -&gt; <a class="enum" href="../../../chrono/enum.Weekday.html" title="enum chrono::Weekday">Weekday</a></code></span></h4>
<div class='docblock'><p>Returns the day of week.</p>
<p>See also the <a href="../date/struct.NaiveDate.html#method.weekday"><code>NaiveDate::weekday</code></a> method.</p>
<h1 id='example-7' class='section-header'><a href='#example-7'>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="ident">NaiveDateTime</span>, <span class="ident">Datelike</span>, <span class="ident">Weekday</span>};
<span class="kw">let</span> <span class="ident">dt</span>: <span class="ident">NaiveDateTime</span> <span class="op">=</span> <span class="ident">NaiveDate</span>::<span class="ident">from_ymd</span>(<span class="number">2015</span>, <span class="number">9</span>, <span class="number">25</span>).<span class="ident">and_hms</span>(<span class="number">12</span>, <span class="number">34</span>, <span class="number">56</span>);
<span class="macro">assert_eq</span><span class="macro">!</span>(<span class="ident">dt</span>.<span class="ident">weekday</span>(), <span class="ident">Weekday</span>::<span class="ident">Fri</span>);</pre>
</div><h4 id='method.isoweekdate' class="method"><span id='isoweekdate.v' class='invisible'><code>fn <a href='../../../chrono/trait.Datelike.html#tymethod.isoweekdate' class='fnname'>isoweekdate</a>(&amp;self) -&gt; <a class="primitive" href="https://doc.rust-lang.org/nightly/std/primitive.tuple.html">(</a><a class="primitive" href="https://doc.rust-lang.org/nightly/std/primitive.i32.html">i32</a>, <a class="primitive" href="https://doc.rust-lang.org/nightly/std/primitive.u32.html">u32</a>, <a class="enum" href="../../../chrono/enum.Weekday.html" title="enum chrono::Weekday">Weekday</a><a class="primitive" href="https://doc.rust-lang.org/nightly/std/primitive.tuple.html">)</a></code></span></h4>
<div class='docblock'><p>Returns the ISO week date: an adjusted year, week number and day of week. The adjusted year may differ from that of the calendar date. <a href="../../../chrono/trait.Datelike.html#tymethod.isoweekdate">Read more</a></p>
</div><h4 id='method.with_year' class="method"><span id='with_year.v' class='invisible'><code>fn <a href='../../../chrono/trait.Datelike.html#tymethod.with_year' class='fnname'>with_year</a>(&amp;self, year: <a class="primitive" href="https://doc.rust-lang.org/nightly/std/primitive.i32.html">i32</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/naive/datetime/struct.NaiveDateTime.html" title="struct chrono::naive::datetime::NaiveDateTime">NaiveDateTime</a>&gt;</code></span></h4>
<div class='docblock'><p>Makes a new <code>NaiveDateTime</code> with the year number changed.</p>
<p>Returns <code>None</code> when the resulting <code>NaiveDateTime</code> would be invalid.</p>
<p>See also the
<a href="../date/struct.NaiveDate.html#method.with_year"><code>NaiveDate::with_year</code></a> method.</p>
<h1 id='example-8' class='section-header'><a href='#example-8'>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="ident">NaiveDateTime</span>, <span class="ident">Datelike</span>};
<span class="kw">let</span> <span class="ident">dt</span>: <span class="ident">NaiveDateTime</span> <span class="op">=</span> <span class="ident">NaiveDate</span>::<span class="ident">from_ymd</span>(<span class="number">2015</span>, <span class="number">9</span>, <span class="number">25</span>).<span class="ident">and_hms</span>(<span class="number">12</span>, <span class="number">34</span>, <span class="number">56</span>);
<span class="macro">assert_eq</span><span class="macro">!</span>(<span class="ident">dt</span>.<span class="ident">with_year</span>(<span class="number">2016</span>), <span class="prelude-val">Some</span>(<span class="ident">NaiveDate</span>::<span class="ident">from_ymd</span>(<span class="number">2016</span>, <span class="number">9</span>, <span class="number">25</span>).<span class="ident">and_hms</span>(<span class="number">12</span>, <span class="number">34</span>, <span class="number">56</span>)));
<span class="macro">assert_eq</span><span class="macro">!</span>(<span class="ident">dt</span>.<span class="ident">with_year</span>(<span class="op">-</span><span class="number">308</span>), <span class="prelude-val">Some</span>(<span class="ident">NaiveDate</span>::<span class="ident">from_ymd</span>(<span class="op">-</span><span class="number">308</span>, <span class="number">9</span>, <span class="number">25</span>).<span class="ident">and_hms</span>(<span class="number">12</span>, <span class="number">34</span>, <span class="number">56</span>)));</pre>
</div><h4 id='method.with_month' class="method"><span id='with_month.v' class='invisible'><code>fn <a href='../../../chrono/trait.Datelike.html#tymethod.with_month' class='fnname'>with_month</a>(&amp;self, month: <a class="primitive" href="https://doc.rust-lang.org/nightly/std/primitive.u32.html">u32</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/naive/datetime/struct.NaiveDateTime.html" title="struct chrono::naive::datetime::NaiveDateTime">NaiveDateTime</a>&gt;</code></span></h4>
<div class='docblock'><p>Makes a new <code>NaiveDateTime</code> with the month number (starting from 1) changed.</p>
<p>Returns <code>None</code> when the resulting <code>NaiveDateTime</code> would be invalid.</p>
<p>See also the
<a href="../date/struct.NaiveDate.html#method.with_month"><code>NaiveDate::with_month</code></a> method.</p>
<h1 id='example-9' class='section-header'><a href='#example-9'>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="ident">NaiveDateTime</span>, <span class="ident">Datelike</span>};
<span class="kw">let</span> <span class="ident">dt</span>: <span class="ident">NaiveDateTime</span> <span class="op">=</span> <span class="ident">NaiveDate</span>::<span class="ident">from_ymd</span>(<span class="number">2015</span>, <span class="number">9</span>, <span class="number">30</span>).<span class="ident">and_hms</span>(<span class="number">12</span>, <span class="number">34</span>, <span class="number">56</span>);
<span class="macro">assert_eq</span><span class="macro">!</span>(<span class="ident">dt</span>.<span class="ident">with_month</span>(<span class="number">10</span>), <span class="prelude-val">Some</span>(<span class="ident">NaiveDate</span>::<span class="ident">from_ymd</span>(<span class="number">2015</span>, <span class="number">10</span>, <span class="number">30</span>).<span class="ident">and_hms</span>(<span class="number">12</span>, <span class="number">34</span>, <span class="number">56</span>)));
<span class="macro">assert_eq</span><span class="macro">!</span>(<span class="ident">dt</span>.<span class="ident">with_month</span>(<span class="number">13</span>), <span class="prelude-val">None</span>); <span class="comment">// no month 13</span>
<span class="macro">assert_eq</span><span class="macro">!</span>(<span class="ident">dt</span>.<span class="ident">with_month</span>(<span class="number">2</span>), <span class="prelude-val">None</span>); <span class="comment">// no February 30</span></pre>
</div><h4 id='method.with_month0' class="method"><span id='with_month0.v' class='invisible'><code>fn <a href='../../../chrono/trait.Datelike.html#tymethod.with_month0' class='fnname'>with_month0</a>(&amp;self, month0: <a class="primitive" href="https://doc.rust-lang.org/nightly/std/primitive.u32.html">u32</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/naive/datetime/struct.NaiveDateTime.html" title="struct chrono::naive::datetime::NaiveDateTime">NaiveDateTime</a>&gt;</code></span></h4>
<div class='docblock'><p>Makes a new <code>NaiveDateTime</code> with the month number (starting from 0) changed.</p>
<p>Returns <code>None</code> when the resulting <code>NaiveDateTime</code> would be invalid.</p>
<p>See also the
<a href="../date/struct.NaiveDate.html#method.with_month0"><code>NaiveDate::with_month0</code></a> method.</p>
<h1 id='example-10' class='section-header'><a href='#example-10'>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="ident">NaiveDateTime</span>, <span class="ident">Datelike</span>};
<span class="kw">let</span> <span class="ident">dt</span>: <span class="ident">NaiveDateTime</span> <span class="op">=</span> <span class="ident">NaiveDate</span>::<span class="ident">from_ymd</span>(<span class="number">2015</span>, <span class="number">9</span>, <span class="number">30</span>).<span class="ident">and_hms</span>(<span class="number">12</span>, <span class="number">34</span>, <span class="number">56</span>);
<span class="macro">assert_eq</span><span class="macro">!</span>(<span class="ident">dt</span>.<span class="ident">with_month0</span>(<span class="number">9</span>), <span class="prelude-val">Some</span>(<span class="ident">NaiveDate</span>::<span class="ident">from_ymd</span>(<span class="number">2015</span>, <span class="number">10</span>, <span class="number">30</span>).<span class="ident">and_hms</span>(<span class="number">12</span>, <span class="number">34</span>, <span class="number">56</span>)));
<span class="macro">assert_eq</span><span class="macro">!</span>(<span class="ident">dt</span>.<span class="ident">with_month0</span>(<span class="number">12</span>), <span class="prelude-val">None</span>); <span class="comment">// no month 13</span>
<span class="macro">assert_eq</span><span class="macro">!</span>(<span class="ident">dt</span>.<span class="ident">with_month0</span>(<span class="number">1</span>), <span class="prelude-val">None</span>); <span class="comment">// no February 30</span></pre>
</div><h4 id='method.with_day' class="method"><span id='with_day.v' class='invisible'><code>fn <a href='../../../chrono/trait.Datelike.html#tymethod.with_day' class='fnname'>with_day</a>(&amp;self, day: <a class="primitive" href="https://doc.rust-lang.org/nightly/std/primitive.u32.html">u32</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/naive/datetime/struct.NaiveDateTime.html" title="struct chrono::naive::datetime::NaiveDateTime">NaiveDateTime</a>&gt;</code></span></h4>
<div class='docblock'><p>Makes a new <code>NaiveDateTime</code> with the day of month (starting from 1) changed.</p>
<p>Returns <code>None</code> when the resulting <code>NaiveDateTime</code> would be invalid.</p>
<p>See also the
<a href="../date/struct.NaiveDate.html#method.with_day"><code>NaiveDate::with_day</code></a> method.</p>
<h1 id='example-11' class='section-header'><a href='#example-11'>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="ident">NaiveDateTime</span>, <span class="ident">Datelike</span>};
<span class="kw">let</span> <span class="ident">dt</span>: <span class="ident">NaiveDateTime</span> <span class="op">=</span> <span class="ident">NaiveDate</span>::<span class="ident">from_ymd</span>(<span class="number">2015</span>, <span class="number">9</span>, <span class="number">8</span>).<span class="ident">and_hms</span>(<span class="number">12</span>, <span class="number">34</span>, <span class="number">56</span>);
<span class="macro">assert_eq</span><span class="macro">!</span>(<span class="ident">dt</span>.<span class="ident">with_day</span>(<span class="number">30</span>), <span class="prelude-val">Some</span>(<span class="ident">NaiveDate</span>::<span class="ident">from_ymd</span>(<span class="number">2015</span>, <span class="number">9</span>, <span class="number">30</span>).<span class="ident">and_hms</span>(<span class="number">12</span>, <span class="number">34</span>, <span class="number">56</span>)));
<span class="macro">assert_eq</span><span class="macro">!</span>(<span class="ident">dt</span>.<span class="ident">with_day</span>(<span class="number">31</span>), <span class="prelude-val">None</span>); <span class="comment">// no September 31</span></pre>
</div><h4 id='method.with_day0' class="method"><span id='with_day0.v' class='invisible'><code>fn <a href='../../../chrono/trait.Datelike.html#tymethod.with_day0' class='fnname'>with_day0</a>(&amp;self, day0: <a class="primitive" href="https://doc.rust-lang.org/nightly/std/primitive.u32.html">u32</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/naive/datetime/struct.NaiveDateTime.html" title="struct chrono::naive::datetime::NaiveDateTime">NaiveDateTime</a>&gt;</code></span></h4>
<div class='docblock'><p>Makes a new <code>NaiveDateTime</code> with the day of month (starting from 0) changed.</p>
<p>Returns <code>None</code> when the resulting <code>NaiveDateTime</code> would be invalid.</p>
<p>See also the
<a href="../date/struct.NaiveDate.html#method.with_day0"><code>NaiveDate::with_day0</code></a> method.</p>
<h1 id='example-12' class='section-header'><a href='#example-12'>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="ident">NaiveDateTime</span>, <span class="ident">Datelike</span>};
<span class="kw">let</span> <span class="ident">dt</span>: <span class="ident">NaiveDateTime</span> <span class="op">=</span> <span class="ident">NaiveDate</span>::<span class="ident">from_ymd</span>(<span class="number">2015</span>, <span class="number">9</span>, <span class="number">8</span>).<span class="ident">and_hms</span>(<span class="number">12</span>, <span class="number">34</span>, <span class="number">56</span>);
<span class="macro">assert_eq</span><span class="macro">!</span>(<span class="ident">dt</span>.<span class="ident">with_day0</span>(<span class="number">29</span>), <span class="prelude-val">Some</span>(<span class="ident">NaiveDate</span>::<span class="ident">from_ymd</span>(<span class="number">2015</span>, <span class="number">9</span>, <span class="number">30</span>).<span class="ident">and_hms</span>(<span class="number">12</span>, <span class="number">34</span>, <span class="number">56</span>)));
<span class="macro">assert_eq</span><span class="macro">!</span>(<span class="ident">dt</span>.<span class="ident">with_day0</span>(<span class="number">30</span>), <span class="prelude-val">None</span>); <span class="comment">// no September 31</span></pre>
</div><h4 id='method.with_ordinal' class="method"><span id='with_ordinal.v' class='invisible'><code>fn <a href='../../../chrono/trait.Datelike.html#tymethod.with_ordinal' class='fnname'>with_ordinal</a>(&amp;self, ordinal: <a class="primitive" href="https://doc.rust-lang.org/nightly/std/primitive.u32.html">u32</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/naive/datetime/struct.NaiveDateTime.html" title="struct chrono::naive::datetime::NaiveDateTime">NaiveDateTime</a>&gt;</code></span></h4>
<div class='docblock'><p>Makes a new <code>NaiveDateTime</code> with the day of year (starting from 1) changed.</p>
<p>Returns <code>None</code> when the resulting <code>NaiveDateTime</code> would be invalid.</p>
<p>See also the
<a href="../date/struct.NaiveDate.html#method.with_ordinal"><code>NaiveDate::with_ordinal</code></a> method.</p>
<h1 id='example-13' class='section-header'><a href='#example-13'>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="ident">NaiveDateTime</span>, <span class="ident">Datelike</span>};
<span class="kw">let</span> <span class="ident">dt</span>: <span class="ident">NaiveDateTime</span> <span class="op">=</span> <span class="ident">NaiveDate</span>::<span class="ident">from_ymd</span>(<span class="number">2015</span>, <span class="number">9</span>, <span class="number">8</span>).<span class="ident">and_hms</span>(<span class="number">12</span>, <span class="number">34</span>, <span class="number">56</span>);
<span class="macro">assert_eq</span><span class="macro">!</span>(<span class="ident">dt</span>.<span class="ident">with_ordinal</span>(<span class="number">60</span>),
<span class="prelude-val">Some</span>(<span class="ident">NaiveDate</span>::<span class="ident">from_ymd</span>(<span class="number">2015</span>, <span class="number">3</span>, <span class="number">1</span>).<span class="ident">and_hms</span>(<span class="number">12</span>, <span class="number">34</span>, <span class="number">56</span>)));
<span class="macro">assert_eq</span><span class="macro">!</span>(<span class="ident">dt</span>.<span class="ident">with_ordinal</span>(<span class="number">366</span>), <span class="prelude-val">None</span>); <span class="comment">// 2015 had only 365 days</span>
<span class="kw">let</span> <span class="ident">dt</span>: <span class="ident">NaiveDateTime</span> <span class="op">=</span> <span class="ident">NaiveDate</span>::<span class="ident">from_ymd</span>(<span class="number">2016</span>, <span class="number">9</span>, <span class="number">8</span>).<span class="ident">and_hms</span>(<span class="number">12</span>, <span class="number">34</span>, <span class="number">56</span>);
<span class="macro">assert_eq</span><span class="macro">!</span>(<span class="ident">dt</span>.<span class="ident">with_ordinal</span>(<span class="number">60</span>),
<span class="prelude-val">Some</span>(<span class="ident">NaiveDate</span>::<span class="ident">from_ymd</span>(<span class="number">2016</span>, <span class="number">2</span>, <span class="number">29</span>).<span class="ident">and_hms</span>(<span class="number">12</span>, <span class="number">34</span>, <span class="number">56</span>)));
<span class="macro">assert_eq</span><span class="macro">!</span>(<span class="ident">dt</span>.<span class="ident">with_ordinal</span>(<span class="number">366</span>),
<span class="prelude-val">Some</span>(<span class="ident">NaiveDate</span>::<span class="ident">from_ymd</span>(<span class="number">2016</span>, <span class="number">12</span>, <span class="number">31</span>).<span class="ident">and_hms</span>(<span class="number">12</span>, <span class="number">34</span>, <span class="number">56</span>)));</pre>
</div><h4 id='method.with_ordinal0' class="method"><span id='with_ordinal0.v' class='invisible'><code>fn <a href='../../../chrono/trait.Datelike.html#tymethod.with_ordinal0' class='fnname'>with_ordinal0</a>(&amp;self, ordinal0: <a class="primitive" href="https://doc.rust-lang.org/nightly/std/primitive.u32.html">u32</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/naive/datetime/struct.NaiveDateTime.html" title="struct chrono::naive::datetime::NaiveDateTime">NaiveDateTime</a>&gt;</code></span></h4>
<div class='docblock'><p>Makes a new <code>NaiveDateTime</code> with the day of year (starting from 0) changed.</p>
<p>Returns <code>None</code> when the resulting <code>NaiveDateTime</code> would be invalid.</p>
<p>See also the
<a href="../date/struct.NaiveDate.html#method.with_ordinal0"><code>NaiveDate::with_ordinal0</code></a> method.</p>
<h1 id='example-14' class='section-header'><a href='#example-14'>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="ident">NaiveDateTime</span>, <span class="ident">Datelike</span>};
<span class="kw">let</span> <span class="ident">dt</span>: <span class="ident">NaiveDateTime</span> <span class="op">=</span> <span class="ident">NaiveDate</span>::<span class="ident">from_ymd</span>(<span class="number">2015</span>, <span class="number">9</span>, <span class="number">8</span>).<span class="ident">and_hms</span>(<span class="number">12</span>, <span class="number">34</span>, <span class="number">56</span>);
<span class="macro">assert_eq</span><span class="macro">!</span>(<span class="ident">dt</span>.<span class="ident">with_ordinal0</span>(<span class="number">59</span>),
<span class="prelude-val">Some</span>(<span class="ident">NaiveDate</span>::<span class="ident">from_ymd</span>(<span class="number">2015</span>, <span class="number">3</span>, <span class="number">1</span>).<span class="ident">and_hms</span>(<span class="number">12</span>, <span class="number">34</span>, <span class="number">56</span>)));
<span class="macro">assert_eq</span><span class="macro">!</span>(<span class="ident">dt</span>.<span class="ident">with_ordinal0</span>(<span class="number">365</span>), <span class="prelude-val">None</span>); <span class="comment">// 2015 had only 365 days</span>
<span class="kw">let</span> <span class="ident">dt</span>: <span class="ident">NaiveDateTime</span> <span class="op">=</span> <span class="ident">NaiveDate</span>::<span class="ident">from_ymd</span>(<span class="number">2016</span>, <span class="number">9</span>, <span class="number">8</span>).<span class="ident">and_hms</span>(<span class="number">12</span>, <span class="number">34</span>, <span class="number">56</span>);
<span class="macro">assert_eq</span><span class="macro">!</span>(<span class="ident">dt</span>.<span class="ident">with_ordinal0</span>(<span class="number">59</span>),
<span class="prelude-val">Some</span>(<span class="ident">NaiveDate</span>::<span class="ident">from_ymd</span>(<span class="number">2016</span>, <span class="number">2</span>, <span class="number">29</span>).<span class="ident">and_hms</span>(<span class="number">12</span>, <span class="number">34</span>, <span class="number">56</span>)));
<span class="macro">assert_eq</span><span class="macro">!</span>(<span class="ident">dt</span>.<span class="ident">with_ordinal0</span>(<span class="number">365</span>),
<span class="prelude-val">Some</span>(<span class="ident">NaiveDate</span>::<span class="ident">from_ymd</span>(<span class="number">2016</span>, <span class="number">12</span>, <span class="number">31</span>).<span class="ident">and_hms</span>(<span class="number">12</span>, <span class="number">34</span>, <span class="number">56</span>)));</pre>
</div><h4 id='method.year_ce' class="method"><span id='year_ce.v' class='invisible'><code>fn <a href='../../../chrono/trait.Datelike.html#method.year_ce' class='fnname'>year_ce</a>(&amp;self) -&gt; <a class="primitive" href="https://doc.rust-lang.org/nightly/std/primitive.tuple.html">(</a><a class="primitive" href="https://doc.rust-lang.org/nightly/std/primitive.bool.html">bool</a>, <a class="primitive" href="https://doc.rust-lang.org/nightly/std/primitive.u32.html">u32</a><a class="primitive" href="https://doc.rust-lang.org/nightly/std/primitive.tuple.html">)</a></code></span></h4>
<div class='docblock'><p>Returns the absolute year number starting from 1 with a boolean flag, which is false when the year predates the epoch (BCE/BC) and true otherwise (CE/AD). <a href="../../../chrono/trait.Datelike.html#method.year_ce">Read more</a></p>
</div><h4 id='method.num_days_from_ce' class="method"><span id='num_days_from_ce.v' class='invisible'><code>fn <a href='../../../chrono/trait.Datelike.html#method.num_days_from_ce' class='fnname'>num_days_from_ce</a>(&amp;self) -&gt; <a class="primitive" href="https://doc.rust-lang.org/nightly/std/primitive.i32.html">i32</a></code></span></h4>
<div class='docblock'><p>Returns the number of days since January 1, 1 (Day 1) in the proleptic Gregorian calendar.</p>
</div></div><h3 class='impl'><span class='in-band'><code>impl <a class="trait" href="../../../chrono/trait.Timelike.html" title="trait chrono::Timelike">Timelike</a> for <a class="struct" href="../../../chrono/naive/datetime/struct.NaiveDateTime.html" title="struct chrono::naive::datetime::NaiveDateTime">NaiveDateTime</a></code></span><span class='out-of-band'><div class='ghost'></div><a class='srclink' href='../../../src/chrono/naive/datetime.rs.html#517-683' title='goto source code'>[src]</a></span></h3>
<div class='impl-items'><h4 id='method.hour' class="method"><span id='hour.v' class='invisible'><code>fn <a href='../../../chrono/trait.Timelike.html#tymethod.hour' class='fnname'>hour</a>(&amp;self) -&gt; <a class="primitive" href="https://doc.rust-lang.org/nightly/std/primitive.u32.html">u32</a></code></span></h4>
<div class='docblock'><p>Returns the hour number from 0 to 23.</p>
<p>See also the <a href="../time/struct.NaiveTime.html#method.hour"><code>NaiveTime::hour</code></a> method.</p>
<h1 id='example-15' class='section-header'><a href='#example-15'>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="ident">NaiveDateTime</span>, <span class="ident">Timelike</span>};
<span class="kw">let</span> <span class="ident">dt</span>: <span class="ident">NaiveDateTime</span> <span class="op">=</span> <span class="ident">NaiveDate</span>::<span class="ident">from_ymd</span>(<span class="number">2015</span>, <span class="number">9</span>, <span class="number">8</span>).<span class="ident">and_hms_milli</span>(<span class="number">12</span>, <span class="number">34</span>, <span class="number">56</span>, <span class="number">789</span>);
<span class="macro">assert_eq</span><span class="macro">!</span>(<span class="ident">dt</span>.<span class="ident">hour</span>(), <span class="number">12</span>);</pre>
</div><h4 id='method.minute' class="method"><span id='minute.v' class='invisible'><code>fn <a href='../../../chrono/trait.Timelike.html#tymethod.minute' class='fnname'>minute</a>(&amp;self) -&gt; <a class="primitive" href="https://doc.rust-lang.org/nightly/std/primitive.u32.html">u32</a></code></span></h4>
<div class='docblock'><p>Returns the minute number from 0 to 59.</p>
<p>See also the <a href="../time/struct.NaiveTime.html#method.minute"><code>NaiveTime::minute</code></a> method.</p>
<h1 id='example-16' class='section-header'><a href='#example-16'>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="ident">NaiveDateTime</span>, <span class="ident">Timelike</span>};
<span class="kw">let</span> <span class="ident">dt</span>: <span class="ident">NaiveDateTime</span> <span class="op">=</span> <span class="ident">NaiveDate</span>::<span class="ident">from_ymd</span>(<span class="number">2015</span>, <span class="number">9</span>, <span class="number">8</span>).<span class="ident">and_hms_milli</span>(<span class="number">12</span>, <span class="number">34</span>, <span class="number">56</span>, <span class="number">789</span>);
<span class="macro">assert_eq</span><span class="macro">!</span>(<span class="ident">dt</span>.<span class="ident">minute</span>(), <span class="number">34</span>);</pre>
</div><h4 id='method.second' class="method"><span id='second.v' class='invisible'><code>fn <a href='../../../chrono/trait.Timelike.html#tymethod.second' class='fnname'>second</a>(&amp;self) -&gt; <a class="primitive" href="https://doc.rust-lang.org/nightly/std/primitive.u32.html">u32</a></code></span></h4>
<div class='docblock'><p>Returns the second number from 0 to 59.</p>
<p>See also the <a href="../time/struct.NaiveTime.html#method.second"><code>NaiveTime::second</code></a> method.</p>
<h1 id='example-17' class='section-header'><a href='#example-17'>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="ident">NaiveDateTime</span>, <span class="ident">Timelike</span>};
<span class="kw">let</span> <span class="ident">dt</span>: <span class="ident">NaiveDateTime</span> <span class="op">=</span> <span class="ident">NaiveDate</span>::<span class="ident">from_ymd</span>(<span class="number">2015</span>, <span class="number">9</span>, <span class="number">8</span>).<span class="ident">and_hms_milli</span>(<span class="number">12</span>, <span class="number">34</span>, <span class="number">56</span>, <span class="number">789</span>);
<span class="macro">assert_eq</span><span class="macro">!</span>(<span class="ident">dt</span>.<span class="ident">second</span>(), <span class="number">56</span>);</pre>
</div><h4 id='method.nanosecond' class="method"><span id='nanosecond.v' class='invisible'><code>fn <a href='../../../chrono/trait.Timelike.html#tymethod.nanosecond' class='fnname'>nanosecond</a>(&amp;self) -&gt; <a class="primitive" href="https://doc.rust-lang.org/nightly/std/primitive.u32.html">u32</a></code></span></h4>
<div class='docblock'><p>Returns the number of nanoseconds since the whole non-leap second.
The range from 1,000,000,000 to 1,999,999,999 represents
the <a href="./naive/time/index.html#leap-second-handling">leap second</a>.</p>
<p>See also the
<a href="../time/struct.NaiveTime.html#method.nanosecond"><code>NaiveTime::nanosecond</code></a> method.</p>
<h1 id='example-18' class='section-header'><a href='#example-18'>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="ident">NaiveDateTime</span>, <span class="ident">Timelike</span>};
<span class="kw">let</span> <span class="ident">dt</span>: <span class="ident">NaiveDateTime</span> <span class="op">=</span> <span class="ident">NaiveDate</span>::<span class="ident">from_ymd</span>(<span class="number">2015</span>, <span class="number">9</span>, <span class="number">8</span>).<span class="ident">and_hms_milli</span>(<span class="number">12</span>, <span class="number">34</span>, <span class="number">56</span>, <span class="number">789</span>);
<span class="macro">assert_eq</span><span class="macro">!</span>(<span class="ident">dt</span>.<span class="ident">nanosecond</span>(), <span class="number">789_000_000</span>);</pre>
</div><h4 id='method.with_hour' class="method"><span id='with_hour.v' class='invisible'><code>fn <a href='../../../chrono/trait.Timelike.html#tymethod.with_hour' class='fnname'>with_hour</a>(&amp;self, hour: <a class="primitive" href="https://doc.rust-lang.org/nightly/std/primitive.u32.html">u32</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/naive/datetime/struct.NaiveDateTime.html" title="struct chrono::naive::datetime::NaiveDateTime">NaiveDateTime</a>&gt;</code></span></h4>
<div class='docblock'><p>Makes a new <code>NaiveDateTime</code> with the hour number changed.</p>
<p>Returns <code>None</code> when the resulting <code>NaiveDateTime</code> would be invalid.</p>
<p>See also the
<a href="../time/struct.NaiveTime.html#method.with_hour"><code>NaiveTime::with_hour</code></a> method.</p>
<h1 id='example-19' class='section-header'><a href='#example-19'>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="ident">NaiveDateTime</span>, <span class="ident">Timelike</span>};
<span class="kw">let</span> <span class="ident">dt</span>: <span class="ident">NaiveDateTime</span> <span class="op">=</span> <span class="ident">NaiveDate</span>::<span class="ident">from_ymd</span>(<span class="number">2015</span>, <span class="number">9</span>, <span class="number">8</span>).<span class="ident">and_hms_milli</span>(<span class="number">12</span>, <span class="number">34</span>, <span class="number">56</span>, <span class="number">789</span>);
<span class="macro">assert_eq</span><span class="macro">!</span>(<span class="ident">dt</span>.<span class="ident">with_hour</span>(<span class="number">7</span>),
<span class="prelude-val">Some</span>(<span class="ident">NaiveDate</span>::<span class="ident">from_ymd</span>(<span class="number">2015</span>, <span class="number">9</span>, <span class="number">8</span>).<span class="ident">and_hms_milli</span>(<span class="number">7</span>, <span class="number">34</span>, <span class="number">56</span>, <span class="number">789</span>)));
<span class="macro">assert_eq</span><span class="macro">!</span>(<span class="ident">dt</span>.<span class="ident">with_hour</span>(<span class="number">24</span>), <span class="prelude-val">None</span>);</pre>
</div><h4 id='method.with_minute' class="method"><span id='with_minute.v' class='invisible'><code>fn <a href='../../../chrono/trait.Timelike.html#tymethod.with_minute' class='fnname'>with_minute</a>(&amp;self, min: <a class="primitive" href="https://doc.rust-lang.org/nightly/std/primitive.u32.html">u32</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/naive/datetime/struct.NaiveDateTime.html" title="struct chrono::naive::datetime::NaiveDateTime">NaiveDateTime</a>&gt;</code></span></h4>
<div class='docblock'><p>Makes a new <code>NaiveDateTime</code> with the minute number changed.</p>
<p>Returns <code>None</code> when the resulting <code>NaiveDateTime</code> would be invalid.</p>
<p>See also the
<a href="../time/struct.NaiveTime.html#method.with_minute"><code>NaiveTime::with_minute</code></a> method.</p>
<h1 id='example-20' class='section-header'><a href='#example-20'>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="ident">NaiveDateTime</span>, <span class="ident">Timelike</span>};
<span class="kw">let</span> <span class="ident">dt</span>: <span class="ident">NaiveDateTime</span> <span class="op">=</span> <span class="ident">NaiveDate</span>::<span class="ident">from_ymd</span>(<span class="number">2015</span>, <span class="number">9</span>, <span class="number">8</span>).<span class="ident">and_hms_milli</span>(<span class="number">12</span>, <span class="number">34</span>, <span class="number">56</span>, <span class="number">789</span>);
<span class="macro">assert_eq</span><span class="macro">!</span>(<span class="ident">dt</span>.<span class="ident">with_minute</span>(<span class="number">45</span>),
<span class="prelude-val">Some</span>(<span class="ident">NaiveDate</span>::<span class="ident">from_ymd</span>(<span class="number">2015</span>, <span class="number">9</span>, <span class="number">8</span>).<span class="ident">and_hms_milli</span>(<span class="number">12</span>, <span class="number">45</span>, <span class="number">56</span>, <span class="number">789</span>)));
<span class="macro">assert_eq</span><span class="macro">!</span>(<span class="ident">dt</span>.<span class="ident">with_minute</span>(<span class="number">60</span>), <span class="prelude-val">None</span>);</pre>
</div><h4 id='method.with_second' class="method"><span id='with_second.v' class='invisible'><code>fn <a href='../../../chrono/trait.Timelike.html#tymethod.with_second' class='fnname'>with_second</a>(&amp;self, sec: <a class="primitive" href="https://doc.rust-lang.org/nightly/std/primitive.u32.html">u32</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/naive/datetime/struct.NaiveDateTime.html" title="struct chrono::naive::datetime::NaiveDateTime">NaiveDateTime</a>&gt;</code></span></h4>
<div class='docblock'><p>Makes a new <code>NaiveDateTime</code> with the second number changed.</p>
<p>Returns <code>None</code> when the resulting <code>NaiveDateTime</code> would be invalid.
As with the <a href="#method.second"><code>second</code></a> method,
the input range is restricted to 0 through 59.</p>
<p>See also the
<a href="../time/struct.NaiveTime.html#method.with_second"><code>NaiveTime::with_second</code></a> method.</p>
<h1 id='example-21' class='section-header'><a href='#example-21'>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="ident">NaiveDateTime</span>, <span class="ident">Timelike</span>};
<span class="kw">let</span> <span class="ident">dt</span>: <span class="ident">NaiveDateTime</span> <span class="op">=</span> <span class="ident">NaiveDate</span>::<span class="ident">from_ymd</span>(<span class="number">2015</span>, <span class="number">9</span>, <span class="number">8</span>).<span class="ident">and_hms_milli</span>(<span class="number">12</span>, <span class="number">34</span>, <span class="number">56</span>, <span class="number">789</span>);
<span class="macro">assert_eq</span><span class="macro">!</span>(<span class="ident">dt</span>.<span class="ident">with_second</span>(<span class="number">17</span>),
<span class="prelude-val">Some</span>(<span class="ident">NaiveDate</span>::<span class="ident">from_ymd</span>(<span class="number">2015</span>, <span class="number">9</span>, <span class="number">8</span>).<span class="ident">and_hms_milli</span>(<span class="number">12</span>, <span class="number">34</span>, <span class="number">17</span>, <span class="number">789</span>)));
<span class="macro">assert_eq</span><span class="macro">!</span>(<span class="ident">dt</span>.<span class="ident">with_second</span>(<span class="number">60</span>), <span class="prelude-val">None</span>);</pre>
</div><h4 id='method.with_nanosecond' class="method"><span id='with_nanosecond.v' class='invisible'><code>fn <a href='../../../chrono/trait.Timelike.html#tymethod.with_nanosecond' class='fnname'>with_nanosecond</a>(&amp;self, nano: <a class="primitive" href="https://doc.rust-lang.org/nightly/std/primitive.u32.html">u32</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/naive/datetime/struct.NaiveDateTime.html" title="struct chrono::naive::datetime::NaiveDateTime">NaiveDateTime</a>&gt;</code></span></h4>
<div class='docblock'><p>Makes a new <code>NaiveDateTime</code> with nanoseconds since the whole non-leap second changed.</p>
<p>Returns <code>None</code> when the resulting <code>NaiveDateTime</code> would be invalid.
As with the <a href="#method.nanosecond"><code>nanosecond</code></a> method,
the input range can exceed 1,000,000,000 for leap seconds.</p>
<p>See also the
<a href="../time/struct.NaiveTime.html#method.with_nanosecond"><code>NaiveTime::with_nanosecond</code></a>
method.</p>
<h1 id='example-22' class='section-header'><a href='#example-22'>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="ident">NaiveDateTime</span>, <span class="ident">Timelike</span>};
<span class="kw">let</span> <span class="ident">dt</span>: <span class="ident">NaiveDateTime</span> <span class="op">=</span> <span class="ident">NaiveDate</span>::<span class="ident">from_ymd</span>(<span class="number">2015</span>, <span class="number">9</span>, <span class="number">8</span>).<span class="ident">and_hms_milli</span>(<span class="number">12</span>, <span class="number">34</span>, <span class="number">56</span>, <span class="number">789</span>);
<span class="macro">assert_eq</span><span class="macro">!</span>(<span class="ident">dt</span>.<span class="ident">with_nanosecond</span>(<span class="number">333_333_333</span>),
<span class="prelude-val">Some</span>(<span class="ident">NaiveDate</span>::<span class="ident">from_ymd</span>(<span class="number">2015</span>, <span class="number">9</span>, <span class="number">8</span>).<span class="ident">and_hms_nano</span>(<span class="number">12</span>, <span class="number">34</span>, <span class="number">56</span>, <span class="number">333_333_333</span>)));
<span class="macro">assert_eq</span><span class="macro">!</span>(<span class="ident">dt</span>.<span class="ident">with_nanosecond</span>(<span class="number">1_333_333_333</span>), <span class="comment">// leap second</span>
<span class="prelude-val">Some</span>(<span class="ident">NaiveDate</span>::<span class="ident">from_ymd</span>(<span class="number">2015</span>, <span class="number">9</span>, <span class="number">8</span>).<span class="ident">and_hms_nano</span>(<span class="number">12</span>, <span class="number">34</span>, <span class="number">56</span>, <span class="number">1_333_333_333</span>)));
<span class="macro">assert_eq</span><span class="macro">!</span>(<span class="ident">dt</span>.<span class="ident">with_nanosecond</span>(<span class="number">2_000_000_000</span>), <span class="prelude-val">None</span>);</pre>
</div><h4 id='method.hour12' class="method"><span id='hour12.v' class='invisible'><code>fn <a href='../../../chrono/trait.Timelike.html#method.hour12' class='fnname'>hour12</a>(&amp;self) -&gt; <a class="primitive" href="https://doc.rust-lang.org/nightly/std/primitive.tuple.html">(</a><a class="primitive" href="https://doc.rust-lang.org/nightly/std/primitive.bool.html">bool</a>, <a class="primitive" href="https://doc.rust-lang.org/nightly/std/primitive.u32.html">u32</a><a class="primitive" href="https://doc.rust-lang.org/nightly/std/primitive.tuple.html">)</a></code></span></h4>
<div class='docblock'><p>Returns the hour number from 1 to 12 with a boolean flag, which is false for AM and true for PM. <a href="../../../chrono/trait.Timelike.html#method.hour12">Read more</a></p>
</div><h4 id='method.num_seconds_from_midnight' class="method"><span id='num_seconds_from_midnight.v' class='invisible'><code>fn <a href='../../../chrono/trait.Timelike.html#method.num_seconds_from_midnight' class='fnname'>num_seconds_from_midnight</a>(&amp;self) -&gt; <a class="primitive" href="https://doc.rust-lang.org/nightly/std/primitive.u32.html">u32</a></code></span></h4>
<div class='docblock'><p>Returns the number of non-leap seconds past the last midnight.</p>
</div></div><h3 class='impl'><span class='in-band'><code>impl <a class="trait" href="https://doc.rust-lang.org/nightly/core/hash/trait.Hash.html" title="trait core::hash::Hash">Hash</a> for <a class="struct" href="../../../chrono/naive/datetime/struct.NaiveDateTime.html" title="struct chrono::naive::datetime::NaiveDateTime">NaiveDateTime</a></code></span><span class='out-of-band'><div class='ghost'></div><a class='srclink' href='../../../src/chrono/naive/datetime.rs.html#689-694' title='goto source code'>[src]</a></span></h3>
<div class='docblock'><p><code>NaiveDateTime</code> can be used as a key to the hash maps (in principle).</p>
<p>Practically this also takes account of fractional seconds, so it is not recommended.
(For the obvious reason this also distinguishes leap seconds from non-leap seconds.)</p>
</div><div class='impl-items'><h4 id='method.hash' class="method"><span id='hash.v' class='invisible'><code>fn <a href='https://doc.rust-lang.org/nightly/core/hash/trait.Hash.html#tymethod.hash' class='fnname'>hash</a>&lt;H:&nbsp;<a class="trait" href="https://doc.rust-lang.org/nightly/core/hash/trait.Hasher.html" title="trait core::hash::Hasher">Hasher</a>&gt;(&amp;self, state: &amp;mut H)</code></span></h4>
<div class='docblock'><p>Feeds this value into the given [<code>Hasher</code>]. <a href="https://doc.rust-lang.org/nightly/core/hash/trait.Hash.html#tymethod.hash">Read more</a></p>
</div><h4 id='method.hash_slice' class="method"><span id='hash_slice.v' class='invisible'><code>fn <a href='https://doc.rust-lang.org/nightly/core/hash/trait.Hash.html#method.hash_slice' class='fnname'>hash_slice</a>&lt;H&gt;(data: <a class="primitive" href="https://doc.rust-lang.org/nightly/std/primitive.slice.html">&amp;[Self]</a>, state: &amp;mut H) <span class="where fmt-newline">where<br>&nbsp;&nbsp;&nbsp;&nbsp;H: <a class="trait" href="https://doc.rust-lang.org/nightly/core/hash/trait.Hasher.html" title="trait core::hash::Hasher">Hasher</a>,&nbsp;</span></code><div class='since' title='Stable since Rust version 1.3.0'>1.3.0</div></span></h4>
<div class='docblock'><p>Feeds a slice of this type into the given [<code>Hasher</code>]. <a href="https://doc.rust-lang.org/nightly/core/hash/trait.Hash.html#method.hash_slice">Read more</a></p>
</div></div><h3 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/duration/struct.Duration.html" title="struct chrono::duration::Duration">Duration</a>&gt; for <a class="struct" href="../../../chrono/naive/datetime/struct.NaiveDateTime.html" title="struct chrono::naive::datetime::NaiveDateTime">NaiveDateTime</a></code></span><span class='out-of-band'><div class='ghost'></div><a class='srclink' href='../../../src/chrono/naive/datetime.rs.html#696-703' 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.Add.html#associatedtype.Output' class="type">Output</a> = <a class="struct" href="../../../chrono/naive/datetime/struct.NaiveDateTime.html" title="struct chrono::naive::datetime::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' 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, rhs: <a class="struct" href="../../../chrono/duration/struct.Duration.html" title="struct chrono::duration::Duration">Duration</a>) -&gt; <a class="struct" href="../../../chrono/naive/datetime/struct.NaiveDateTime.html" title="struct chrono::naive::datetime::NaiveDateTime">NaiveDateTime</a></code></span></h4>
<div class='docblock'><p>The method for the <code>+</code> operator</p>
</div></div><h3 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/naive/datetime/struct.NaiveDateTime.html" title="struct chrono::naive::datetime::NaiveDateTime">NaiveDateTime</a>&gt; for <a class="struct" href="../../../chrono/naive/datetime/struct.NaiveDateTime.html" title="struct chrono::naive::datetime::NaiveDateTime">NaiveDateTime</a></code></span><span class='out-of-band'><div class='ghost'></div><a class='srclink' href='../../../src/chrono/naive/datetime.rs.html#705-711' 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="../../../chrono/duration/struct.Duration.html" title="struct chrono::duration::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' 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, rhs: <a class="struct" href="../../../chrono/naive/datetime/struct.NaiveDateTime.html" title="struct chrono::naive::datetime::NaiveDateTime">NaiveDateTime</a>) -&gt; <a class="struct" href="../../../chrono/duration/struct.Duration.html" title="struct chrono::duration::Duration">Duration</a></code></span></h4>
<div class='docblock'><p>The method for the <code>-</code> operator</p>
</div></div><h3 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/duration/struct.Duration.html" title="struct chrono::duration::Duration">Duration</a>&gt; for <a class="struct" href="../../../chrono/naive/datetime/struct.NaiveDateTime.html" title="struct chrono::naive::datetime::NaiveDateTime">NaiveDateTime</a></code></span><span class='out-of-band'><div class='ghost'></div><a class='srclink' href='../../../src/chrono/naive/datetime.rs.html#713-720' 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="../../../chrono/naive/datetime/struct.NaiveDateTime.html" title="struct chrono::naive::datetime::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-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, rhs: <a class="struct" href="../../../chrono/duration/struct.Duration.html" title="struct chrono::duration::Duration">Duration</a>) -&gt; <a class="struct" href="../../../chrono/naive/datetime/struct.NaiveDateTime.html" title="struct chrono::naive::datetime::NaiveDateTime">NaiveDateTime</a></code></span></h4>
<div class='docblock'><p>The method for the <code>-</code> operator</p>
</div></div><h3 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/naive/datetime/struct.NaiveDateTime.html" title="struct chrono::naive::datetime::NaiveDateTime">NaiveDateTime</a></code></span><span class='out-of-band'><div class='ghost'></div><a class='srclink' href='../../../src/chrono/naive/datetime.rs.html#722-726' 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, 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="type" href="https://doc.rust-lang.org/nightly/core/fmt/type.Result.html" title="type core::fmt::Result">Result</a></code></span></h4>
<div class='docblock'><p>Formats the value using the given formatter.</p>
</div></div><h3 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/naive/datetime/struct.NaiveDateTime.html" title="struct chrono::naive::datetime::NaiveDateTime">NaiveDateTime</a></code></span><span class='out-of-band'><div class='ghost'></div><a class='srclink' href='../../../src/chrono/naive/datetime.rs.html#728-732' 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="type" href="https://doc.rust-lang.org/nightly/core/fmt/type.Result.html" title="type core::fmt::Result">Result</a></code></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 class='impl'><span class='in-band'><code>impl <a class="trait" href="https://doc.rust-lang.org/nightly/core/str/trait.FromStr.html" title="trait core::str::FromStr">FromStr</a> for <a class="struct" href="../../../chrono/naive/datetime/struct.NaiveDateTime.html" title="struct chrono::naive::datetime::NaiveDateTime">NaiveDateTime</a></code></span><span class='out-of-band'><div class='ghost'></div><a class='srclink' href='../../../src/chrono/naive/datetime.rs.html#734-757' title='goto source code'>[src]</a></span></h3>
<div class='impl-items'><h4 id='associatedtype.Err' class="type"><span id='Err.t' class='invisible'><code>type <a href='https://doc.rust-lang.org/nightly/core/str/trait.FromStr.html#associatedtype.Err' class="type">Err</a> = <a class="struct" href="../../../chrono/format/struct.ParseError.html" title="struct chrono::format::ParseError">ParseError</a></code></span></h4>
<div class='docblock'><p>The associated error which can be returned from parsing.</p>
</div><h4 id='method.from_str' class="method"><span id='from_str.v' class='invisible'><code>fn <a href='https://doc.rust-lang.org/nightly/core/str/trait.FromStr.html#tymethod.from_str' class='fnname'>from_str</a>(s: &amp;<a class="primitive" href="https://doc.rust-lang.org/nightly/std/primitive.str.html">str</a>) -&gt; <a class="type" href="../../../chrono/format/type.ParseResult.html" title="type chrono::format::ParseResult">ParseResult</a>&lt;<a class="struct" href="../../../chrono/naive/datetime/struct.NaiveDateTime.html" title="struct chrono::naive::datetime::NaiveDateTime">NaiveDateTime</a>&gt;</code></span></h4>
<div class='docblock'><p>Parses a string <code>s</code> to return a value of this type. <a href="https://doc.rust-lang.org/nightly/core/str/trait.FromStr.html#tymethod.from_str">Read more</a></p>
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