setMonth Method

Article
11/16/2012

Sets the month value in the Date object using local time.

function setMonth(numMonth : Number [, dateVal : Number])

Arguments

numMonth
Required. A numeric value equal to the month. The value for January is 0, and other month values follow consecutively.
dateVal
Optional. A numeric value that represents the day of the month. If this value is not supplied, the value from a call to the getDate method is used.

Remarks

To set the month value using Coordinated Universal Time (UTC), use the setUTCMonth method.

If the value of numMonth is greater than 11 (January is month 0) or is a negative number, the stored year is modified accordingly. For example, if the stored date is "Jan 5, 1996" and setMonth(14) is called, the date is changed to "Mar 5, 1997."

The setFullYear method can be used to set the year, month, and day of the month.

Example

The following example illustrates the use of the setMonth method.

function SetMonthDemo(newmonth){
    var d = new Date();
    d.setMonth(newmonth);

    var s = d.toLocaleString(); 
    return(s);
}

Requirements

Version 1

Applies To:

Date Object

Change History

Date	History	Reason
March 2009	Added information to the argument definitions and remarks, and simplified the example.	Information enhancement.

Share via