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Date.prototype.setFullYear()

The setFullYear() method of Date instances changes the year, month, and/or day of month for this date according to local time.

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Syntax

setFullYear(yearValue)
setFullYear(yearValue, monthValue)
setFullYear(yearValue, monthValue, dateValue)

Parameters

yearValue: An integer representing the year. For example, 1995.
monthValue Optional: An integer representing the month: 0 for January, 1 for February, and so on.
dateValue Optional: An integer between 1 and 31 representing the day of the month. If you specify dateValue, you must also specify monthValue.

Return value

Changes the Date object in place, and returns its new timestamp. If a parameter is NaN (or other values that get coerced to NaN, such as undefined), the date is set to Invalid Date and NaN is returned.

Description

If you do not specify the monthValue and dateValue parameters, the same values as what are returned by getMonth() and getDate() are used.

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

Examples

Using setFullYear()

const theBigDay = new Date();
theBigDay.setFullYear(1997);

Specifications

Specification
ECMAScript Language Specification # sec-date.prototype.setfullyear

Browser compatibility

	Desktop						Mobile						Server
	Chrome	Edge	Firefox	Opera	Safari	Chrome Android	Firefox for Android	Opera Android	Safari on IOS	Samsung Internet	WebView Android	Deno	Node.js
`setFullYear`	1	12	1	4	1	18	4	10.1	1	1.0	4.4	1.0	0.10.0