JavaScript tutorial:
setMonth method

 

Applies to: Date Object

The setMonth method is use to set the month value in the Date object using local time. It returns in milliseconds and then you can use obj.toLocaleString( ) to convert to string.

Syntax

objDate.setMonth(numMonth[, dateVal])

The setMonth method syntax has these parts:

Part

Description

numMonth

Required. A numeric value equal to the month.

dateVal

Optional. A numeric value representing the date. If not supplied, the value from a call to the getDate method is used.

Return millisecond

Returns set time in milliseconds.

Example

To set the month value using Universal Coordinated 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 following example illustrates the use of the setMonth method:

function SetMonth(newmonth)
{
    var d, s;
    d = new Date();
    d.setMonth(newmonth);
    s = "Current setting is ";
    s += d.toLocaleString();
    return(s);
}

document.write(SetMonth(11));

  To run the code above, paste it into JavaScript Editor, and click the Execute button

See also: Date Object Methods, getMonth Method, getUTCMonth Method, setUTCMonth Method