Date.prototype.setMonth()

The setMonth() method sets the month for a specified date according to the currently set year.

Syntax

dateObj.setMonth(monthValue[, dayValue])

Versions prior to JavaScript 1.3

dateObj.setMonth(monthValue)

Parameter

monthValue
An integer between 0 and 11, representing the months January through December.
dayValue
Optional. An integer from 1 to 31, representing the day of the month.

Description

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

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

Examples

Using setMonth()

var theBigDay = new Date();
theBigDay.setMonth(6);

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

Browser compatibility

Feature Chrome Firefox (Gecko) Internet Explorer Opera Safari
Basic support (Yes) (Yes) (Yes) (Yes) (Yes)
Feature Android Chrome for Android Firefox Mobile (Gecko) IE Mobile Opera Mobile Safari Mobile
Basic support (Yes) (Yes) (Yes) (Yes) (Yes) (Yes)

See also

Document Tags and Contributors

Last updated by: fscholz,
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