The JavaScript date getMonth() method is used to get the integer value between 0 and 11 that represents the month based on the local time.
Syntax:
dateObj.getMonth()
Return:
An integer value between 0 and 11.
Example:
<!DOCTYPE html>
<html>
<body>
<script>
var d = new Date("March 16, 2018 13:34:45:500");
var n = d.getMonth()+1;
document.writeln(n)
</script>
</body>
</html>