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The setSeconds() method sets the seconds for a specified date according to local time.


dateObj.setSeconds(secondsValue[, msValue])

Versions prior to JavaScript 1.3



An integer between 0 and 59, representing the seconds.
Optional. A number between 0 and 999, representing the milliseconds.

Return value

The number of milliseconds between 1 January 1970 00:00:00 UTC and the updated date.


If you do not specify the msValue parameter, the value returned from the getMilliseconds() method is used.

If a parameter you specify is outside of the expected range, setSeconds() attempts to update the date information in the Date object accordingly. For example, if you use 100 for secondsValue, the minutes stored in the Date object will be incremented by 1, and 40 will be used for seconds.


Using setSeconds()

var theBigDay = new Date();


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.setSeconds' in that specification.
ECMAScript 2015 (6th Edition, ECMA-262)
The definition of 'Date.prototype.setSeconds' in that specification.
ECMAScript Latest Draft (ECMA-262)
The definition of 'Date.prototype.setSeconds' in that specification.

Browser compatibility

FeatureChromeEdgeFirefoxInternet ExplorerOperaSafari
Basic support Yes Yes Yes Yes Yes Yes
FeatureAndroid webviewChrome for AndroidEdge mobileFirefox for AndroidOpera AndroidiOS SafariSamsung Internet
Basic support Yes Yes Yes Yes Yes Yes ?

See also

Document Tags and Contributors

 Last updated by: wbamberg,