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JavaScript Date.UTC()

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示例

获取某个日期与 1970 年 1 月 1 日之间的毫秒数：

let ms = Date.UTC(2020, 02, 30);
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下面有更多 "亲自试一试" 示例。

描述

Date.UTC() 方法根据 UTC 返回指定日期与 1970 年 1 月 1 日午夜之间的毫秒数。

笔记

UTC（通用协调时间）是世界时间标准设定的时间。

UTC 时间与 GMT 时间（格林威治标准时间）相同。

浏览器支持

Date.UTC()是 ECMAScript1 (ES1) 功能。

所有浏览器均完全支持 ES1 (JavaScript 1997)：

Chrome Edge Firefox Safari Opera IE
Yes Yes Yes Yes Yes Yes

语法

Date.UTC( year, month, day, hours, minutes, seconds, millisec)

Date.UTC() 是 Date 对象的静态方法。

您不能在 d.UTC() 这样的日期上使用它

语法始终为 Date.UTC()。

参数值

Parameter Description
year Required. A four-digit value representing the year, negative values are allowed
month Required. An integer representing the month

Expected values are 0-11, but other values are allowed:

  • -1 will result in the last month of the previous year
  • 12 will result in the first month of the next year
  • 13 will result in the second month of the next year
day Optional. An integer representing the day of month

Expected values are 1-31, but other values are allowed:

  • 0 will result in the last hour of the previous month
  • -1 will result in the hour before the last hour of the previous month

If the month has 31 days:

  • 32 will result in the first day of the next month

If the month has 30 days:

  • 32 will result in the second day of the next month
hour Optional. Default 0. An integer representing the hour.

Expected values are 0-23, but other values are allowed:

  • -1 will result in the last hour of the previous day
  • 24 will result in the first hour of the next day
min Optional. Default 0. An integer representing the minutes.

Expected values are 0-59, but other values are allowed:

  • -1 will result in the last minute of the previous hour
  • 60 will result in the first minute of the next hour
sec Optional. Default 0. An integer representing the seconds

Expected values are 0-59, but other values are allowed:

  • -1 will result in the last second of the previous minute
  • 60 will result in the first second of the next minute
millisec Optional. Default 0. An integer representing the milliseconds

Expected values are 0-999, but other values are allowed:

  • -1 will result in the last millisecond of the previous second
  • 1000 will result in the first millisecond of the next second

技术细节

返回值： 一个数字，表示指定日期时间与 1970 年 1 月 1 日午夜之间的毫秒数
JavaScript 版本： ECMA脚本1

更多示例

示例

使用 UTC 时间而不是本地时间创建日期对象：

let d = new Date(Date.UTC(2020, 02, 30));
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相关页面：

JavaScript 日期

JavaScript 日期格式

JavaScript 日期获取方法

JavaScript 日期设置方法

❮上一节 JavaScript 日期参考 下一节❯