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The setFullYear() method sets the full year for a specified date according to local time. Returns new timestamp.


dateObj.setFullYear(yearValue[, monthValue[, dayValue]])


An integer specifying the numeric value of the year, for example, 1995.
Optional. An integer between 0 and 11 representing the months January through December.
Optional. An integer between 1 and 31 representing the day of the month. If you specify the dayValue parameter, you must also specify the monthValue.

Return value

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


If you do not specify the monthValue and dayValue parameters, the values returned from the getMonth() and getDate() methods are used.

If a parameter you specify is outside of the expected range, setFullYear() attempts to update the other parameters and the date information in the Date object accordingly. For example, if you specify 15 for monthValue, the year is incremented by 1 (yearValue + 1), and 3 is used for the month.


Using setFullYear()

var theBigDay = new Date();


Specification Status Comment
ECMAScript 1st Edition (ECMA-262) Standard Initial definition. Implemented in JavaScript 1.3.
ECMAScript 5.1 (ECMA-262)
The definition of 'Date.prototype.setFullYear' in that specification.
ECMAScript 2015 (6th Edition, ECMA-262)
The definition of 'Date.prototype.setFullYear' in that specification.
ECMAScript Latest Draft (ECMA-262)
The definition of 'Date.prototype.setFullYear' 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,