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Sets the month value in the Date object using Universal Coordinated Time (UTC).


dateObj.setUTCMonth( numMonth [ , dateVal ] )
Required. Any Date object.
Required. A numeric value equal to the month. The value for January is 0, and other month values follow consecutively.
Optional. A numeric value representing the day of the month. If it is not supplied, the value from a call to the getUTCDate method is used.


The following example illustrates the use of the setUTCMonth method.

function SetUTCMonthDemo(newmonth){
    var d, s;                       // Declare variables.
    d = new Date();                 // Create Date object.d.setUTCMonth( newmonth ) ;        // Set UTC month.
    s = "Current setting is ";
    s += d.toUTCString();
    return(s);                      // Return new setting.


To set the month value using local time, use the setMonth method.

If the value of numMonth is greater than 11 (January is month 0), or is a negative number, the stored year is incremented or decremented appropriately. For example, if the stored date is "Jan 5, 1996 00:00:00.00", and setUTCMonth(14) is called, the date is changed to “Mar 5, 1997 00:00:00.00.”

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

See also

Other articles


  • Microsoft Developer Network: Article