The setHours()
method sets the hours for a specified date according to local time, and returns the number of milliseconds since January 1, 1970 00:00:00 UTC until the time represented by the updated Date
instance.
Syntax
dateObj.setHours(hoursValue[, minutesValue[, secondsValue[, msValue]]])
Versions prior to JavaScript 1.3
dateObj.setHours(hoursValue)
Parameters
hoursValue
- Ideally, an integer between 0 and 23, representing the hour. If a value greater than 23 is provided, the datetime will be incremented by the extra hours.
minutesValue
- Optional. Ideally, an integer between 0 and 59, representing the minutes. If a value greather than 59 is provided, the datetime will be incremented by the extra minutes.
secondsValue
- Optional. Ideally, an integer between 0 and 59, representing the seconds. If a value greather than 59 is provided, the datetime will be incremented by the extra seconds. If you specify the
secondsValue
parameter, you must also specify theminutesValue
. msValue
- Optional. Ideally, a number between 0 and 999, representing the milliseconds. If a value greather than 999 is provided, the datetime will be incremented by the extra milliseconds. If you specify the
msValue
parameter, you must also specify theminutesValue
andsecondsValue
.
Return value
The number of milliseconds between January 1, 1970 00:00:00 UTC and the updated date.
Description
If you do not specify the minutesValue
, secondsValue
, and msValue
parameters, the values returned from the getMinutes()
, getSeconds()
, and getMilliseconds()
methods are used.
If a parameter you specify is outside of the expected range, setHours()
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.
Examples
Using setHours()
var theBigDay = new Date(); theBigDay.setHours(7);
Specifications
Specification | Status | Comment |
---|---|---|
ECMAScript 1st Edition (ECMA-262) | Standard | Initial definition. Implemented in JavaScript 1.0. |
ECMAScript 5.1 (ECMA-262) The definition of 'Date.prototype.setHours' in that specification. |
Standard | |
ECMAScript 2015 (6th Edition, ECMA-262) The definition of 'Date.prototype.setHours' in that specification. |
Standard | |
ECMAScript Latest Draft (ECMA-262) The definition of 'Date.prototype.setHours' in that specification. |
Living Standard |
Browser compatibility
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.
Feature | Chrome | Edge | Firefox | Internet Explorer | Opera | Safari |
---|---|---|---|---|---|---|
Basic support | Yes | Yes | Yes | Yes | Yes | Yes |
Feature | Android webview | Chrome for Android | Edge mobile | Firefox for Android | IE mobile | Opera Android | iOS Safari |
---|---|---|---|---|---|---|---|
Basic support | Yes | Yes | Yes | Yes | Yes | Yes | Yes |