1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
|
---
title: Date.prototype.getTimezoneOffset()
slug: Web/JavaScript/Reference/Global_Objects/Date/getTimezoneOffset
translation_of: Web/JavaScript/Reference/Global_Objects/Date/getTimezoneOffset
---
<div>{{JSRef("Global_Objects", "Date")}}</div>
<p><code><strong>getTimezoneOffset()</strong></code> 方法返回协调世界时(UTC)相对于当前时区的时间差值,单位为分钟。</p>
<div>{{EmbedInteractiveExample("pages/js/date-gettimezoneoffset.html")}}</div>
<h2 id="Syntax" name="Syntax">语法</h2>
<pre class="syntaxbox language-html" style="margin-bottom: 0px; padding: 1em; border-left-width: 6px; border-left-style: solid; font-family: Consolas, Monaco, 'Andale Mono', monospace; font-size: 14px; text-shadow: none; direction: ltr; white-space: normal; background-color: rgba(212, 221, 228, 0.498039);"><code class="language-html" style="font-family: Consolas, Monaco, 'Andale Mono', monospace; color: inherit; text-shadow: none; direction: ltr;">dateObj.getTimezoneOffset()</code></pre>
<h3 id="Parameters" name="Parameters">参数</h3>
<p>无</p>
<h3 id="Description" name="Description">返回值</h3>
<p>时区偏差(time-zone offset)表示协调世界时(UTC)与本地时区之间的差值,单位为分钟。需要注意的是如果本地时区后于协调世界时,则该差值为正值,如果先于协调世界时则为负值。例如你所在时区为 UTC+10(澳大利亚东部标准时间),将会返回 -600。对于同一个时区,夏令时(Daylight Saving Time)将会改变这个值。</p>
<h2 id="Examples" name="Examples">例子</h2>
<h3 id="Example_Using_getTimezoneOffset" name="Example:_Using_getTimezoneOffset">例子: 使用<code>getTimezoneOffset方法</code></h3>
<pre class="brush:js">var x = new Date();
var currentTimeZoneOffsetInHours = x.getTimezoneOffset() / 60;
</pre>
<h2 id="规范">规范</h2>
<table class="standard-table">
<tbody>
<tr>
<th scope="col">规范版本</th>
<th scope="col">规范状态</th>
<th scope="col">注解</th>
</tr>
<tr>
<td>ECMAScript 1st Edition. Implemented in JavaScript 1.0</td>
<td>Standard</td>
<td>Initial definition.</td>
</tr>
<tr>
<td>{{SpecName('ES5.1', '#sec-15.9.5.26', 'Date.prototype.getTimezoneOffset')}}</td>
<td>{{Spec2('ES5.1')}}</td>
<td></td>
</tr>
<tr>
<td>{{SpecName('ES6', '#sec-date.prototype.gettimezoneoffset', 'Date.prototype.getTimezoneOffset')}}</td>
<td>{{Spec2('ES6')}}</td>
<td></td>
</tr>
</tbody>
</table>
<h2 id="浏览器兼容性">浏览器兼容性</h2>
<p>{{Compat("javascript.builtins.Date.getTimezoneOffset")}}</p>
|