Time Zone using JavaScript

getTimezoneOffset()

      This method returns the time difference between GMT and local time in minutes.

Benefits:

              Daylight Saving Time (DST) is also automatically gets calculated with the help of this method.

Sample Usage:

<script type = "text/javascript" language = "javascript">

        var d = new Date()

        var n = d.getTimezoneOffset();

        alert(n);

</script>