JS date setUTCHours()
The setUTCHours()
method sets the hour for a specified date according to universal time, and returns the number of milliseconds since 1 January 1970 00:00:00 UTC until the time represented by the updated Date
instance.
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Syntax
dateObj.setUTCHours(hoursValue[, minutesValue[, secondsValue[, msValue]]])
参数
hoursValue
表示小时的整数,取值0到23之间。
minutesValue
可选参数。表示分钟的整数,取值0到59之间。
secondsValue
可选参数。表示秒数的整数,取值0到59之间。如果指定了该参数,就要同时指定minutesValue这个参数。
msValue
可选参数。表示毫秒的整数,取值0到999之间。如果指定了该参数,就要指定minutesValue和secondsValue这两个参数。
返回值
返回从1970-01-01 00:00:00 UTC 到更新后的日期所表示时间的毫秒数。
描述
If you do not specify the minutesValue
, secondsValue
, and msValue
parameters, the values returned from the getUTCMinutes()
, getUTCSeconds()
, and getUTCMilliseconds()
methods are used.
If a parameter you specify is outside of the expected range, setUTCHours()
attempts to update the date information in the Date
object accordingly. For example, if you use 100 for secondsValue
, the minutes will be incremented by 1 (minutesValue + 1
), and 40 will be used for seconds.
例子
使用 setUTCHours()
var theBigDay = new Date();
theBigDay.setUTCHours(8);
规范
Specification | Status | Comment |
---|---|---|
ECMAScript 1st Edition (ECMA-262) | Standard | Initial definition. Implemented in JavaScript 1.3. |
ECMAScript 5.1 (ECMA-262) Date.prototype.setUTCHours | Standard | |
ECMAScript 2015 (6th Edition, ECMA-262)Date.prototype.setUTCHours | Standard | |
ECMAScript Latest Draft (ECMA-262)Date.prototype.setUTCHours | Draft |