`setUTCDate()` 方法就是根据全球时间设置特定date对象的日期。

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## 语法

    dateObj.setUTCDate(dayValue)

### 参数

`dayValue`
  一个1-31的整形数字，用来指定日期。

## 描述

如果你指定的参数超出了范围，setUTCDate()会尝试更新对应的`Date` 中的日期信息。例如，如果你使用了40来作为参数，但是`Date` 中存储的月份为6月，那么日期将被改写为10且月份被增到7月。

## 示例

### 使用Using `setUTCDate()`

    var theBigDay = new Date();
    theBigDay.setUTCDate(20);

## 规范

Specification | Status | Comment
--- | --- | ---
ECMAScript 1st Edition. | Standard | Initial definition. Implemented in JavaScript 1.3.
ECMAScript 5.1 (ECMA-262) Date.prototype.setUTCDate | Standard |
ECMAScript 2015 (6th Edition, ECMA-262) Date.prototype.setUTCDate | Standard |

## 浏览器兼容

The compatibility table in this page is generated from structured data. If you'd like to contribute to the data, please check out https://github.com/mdn/browser-compat-data and send us a pull request.

Update compatibility data on GitHub

| Desktop | Mobile | Server
| Chrome | Edge | Firefox | Internet Explorer | Opera | Safari | Android webview | Chrome for Android | Edge Mobile | Firefox for Android | Opera for Android | Safari on iOS | Samsung Internet | Node.js
`setUTCDate` | Chrome Full support Yes | Edge Full support 12 | Firefox Full support 1 | IE Full support Yes | Opera Full support Yes | Safari Full support Yes | WebView Android Full support Yes | Chrome Android Full support Yes | Edge Mobile Full support Yes | Firefox Android Full support 4 | Opera Android Full support Yes | Safari iOS Full support Yes | Samsung Internet Android Full support Yes | nodejs Full support Yes

### Legend

Full support
  Full support

## 相关内容

- `Date.prototype.getUTCDate()`
- `Date.prototype.setDate()`