---
title: <time>
slug: Web/HTML/Element/time
translation_of: Web/HTML/Element/time
---
<p><strong>HTML <code>&lt;time&gt;</code> element</strong> 用以表示時間，可以是24小時制時間或以<a class="external" href="https://zh.wikipedia.org/zh-tw/%E5%85%AC%E5%8E%86" title="公曆">公曆</a>紀年的日期（日期可以添加時間和時區的資訊）</p>

<p>此 element 旨在以機器可讀的格式顯示時間。這能幫助使用者代理調度使用者的日期。</p>

<div class="note"><strong>使用注意: </strong>此 element 不適合用在「不確定正確時間」和「時間為西元前（日期的計算會出現錯誤）」的情況。</div>

<table class="properties">
 <tbody>
  <tr>
   <th scope="row"><a href="/zh-TW/docs/Web/HTML/Content_categories" title="HTML/Content_categories">內容分類</a></th>
   <td><a href="/en-US/docs/Web/HTML/Content_categories#Flow_content" title="HTML/Content_categories#Flow_content">Flow content</a>, <a href="/en-US/docs/HTML/Content_categories#Phrasing_content" title="HTML/Content categories#Phrasing content">phrasing content</a>, palpable content.</td>
  </tr>
  <tr>
   <th scope="row">允許之內容</th>
   <td><a href="/en-US/docs/HTML/Content_categories#Phrasing_content" title="HTML/Content categories#Phrasing content">Phrasing content</a>.</td>
  </tr>
  <tr>
   <th scope="row">省略標籤</th>
   <td>
    <p>不可。</p>

    <p>起始標籤和結束標籤是強制必要的</p>
   </td>
  </tr>
  <tr>
   <th scope="row">可接受的副 elements</th>
   <td>任何接受 phrasing content 的  element。</td>
  </tr>
  <tr>
   <th scope="row">DOM interface</th>
   <td>{{domxref("HTMLTimeElement")}}</td>
  </tr>
 </tbody>
</table>

<h2 id="Attributes">Attributes</h2>

<p>和其他HTML elements一樣，接受所有 <a href="/en-US/docs/HTML/Global_attributes" title="HTML/Global attributes">global attributes</a>。</p>

<dl>
 <dt>{{htmlattrdef("datetime")}}</dt>
 <dd>此 attribute 用以表示日期或時間，其格式必須是<a class="external" href="http://www.w3.org/TR/html-markup/datatypes.html#common.data.datetime" title="">有效的日期/時間格式</a>。若其值不正確，則 element 就不會有關連的 time stamp.</dd>
</dl>

<h2 id="示例">示例</h2>

<h3 id="Simple_example" name="Simple_example">Simple example</h3>

<h4 id="HTML">HTML</h4>

<pre class="brush: html">&lt;p&gt;The concert starts at &lt;time&gt;20:00&lt;/time&gt;.&lt;/p&gt;
</pre>

<h4 id="Output">Output</h4>

<p>{{ EmbedLiveSample('Simple_example', 250, 60) }}</p>

<h3 id="Datetime_example" name="Datetime_example"><code>datetime</code> example</h3>

<h4 id="HTML_2">HTML</h4>

<pre class="brush: html">&lt;p&gt;The concert took place on &lt;time datetime="2001-05-15T19:00"&gt;May 15&lt;/time&gt;.&lt;/p&gt;
</pre>

<h4 id="Output_2">Output</h4>

<p>{{ EmbedLiveSample('Datetime_example', 250, 60) }}</p>

<h2 id="Specifications" name="Specifications">規格</h2>

<table class="standard-table">
 <thead>
  <tr>
   <th scope="col">Specification</th>
   <th scope="col">Status</th>
   <th scope="col">Comment</th>
  </tr>
 </thead>
 <tbody>
  <tr>
   <td>{{SpecName('HTML WHATWG', '#the-time-element', '&lt;time&gt;')}}</td>
   <td>{{Spec2('HTML WHATWG')}}</td>
   <td>No change from {{SpecName('HTML5.1')}}</td>
  </tr>
  <tr>
   <td>{{SpecName('HTML5.1', 'grouping-content.html#the-time-element', '&lt;time&gt;')}}</td>
   <td>{{Spec2('HTML5.1')}}</td>
   <td>No change from {{SpecName('HTML5 W3C')}}</td>
  </tr>
  <tr>
   <td>{{SpecName('HTML5 W3C', 'grouping-content.html#the-time-element', '&lt;time&gt;')}}</td>
   <td>{{Spec2('HTML5 W3C')}}</td>
   <td>Initial definition.</td>
  </tr>
 </tbody>
</table>

<h2 id="瀏覽器支援度">瀏覽器支援度</h2>

<p>{{CompatibilityTable}}</p>

<div id="compat-desktop">
<table class="compat-table">
 <tbody>
  <tr>
   <th>Feature</th>
   <th>Chrome</th>
   <th>Firefox (Gecko)</th>
   <th>Internet Explorer</th>
   <th>Opera</th>
   <th>Safari</th>
  </tr>
  <tr>
   <td>Basic support</td>
   <td>33.0</td>
   <td>{{CompatGeckoDesktop("22.0")}}</td>
   <td>9.0</td>
   <td>22.0</td>
   <td>7.0</td>
  </tr>
 </tbody>
</table>
</div>

<div id="compat-mobile">
<table class="compat-table">
 <tbody>
  <tr>
   <th>Feature</th>
   <th>Android</th>
   <th>Chrome for Android</th>
   <th>Firefox Mobile (Gecko)</th>
   <th>IE Mobile</th>
   <th>Opera Mobile</th>
   <th>Safari Mobile</th>
  </tr>
  <tr>
   <td>Basic support</td>
   <td>2.1</td>
   <td>{{CompatUnknown}}</td>
   <td>{{CompatGeckoMobile("22.0")}}</td>
   <td>10.0</td>
   <td>11.50<br>
    Removed in 15.0</td>
   <td>4.0-4.1</td>
  </tr>
 </tbody>
</table>
</div>

<h2 id="See_also" name="See_also">延伸閱讀</h2>

<ul>
 <li>The {{HTMLElement("data")}} element, allowing to signal other kind of values.</li>
</ul>

<p>{{HTMLRef}}</p>