setTime() 方法以一个表示从1970-1-1 00:00:00 UTC计时的毫秒数为来为 Date 对象设置时间。

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语法

dateObj.setTime(timeValue)

参数

timeValue

一个整数，表示从1970-1-1 00:00:00 UTC开始计时的毫秒数。

描述

使用 setTime 方法用来把一个日期时间赋值给另一个 Date 对象。

例子

例子：使用setTime

theBigDay = new Date("July 1, 1999");
sameAsBigDay = new Date();
sameAsBigDay.setTime(theBigDay.getTime());

规范

浏览器兼容性

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相关链接

• Date.prototype.getTime()
• Date.prototype.setUTCHours()