Getting user time zone in client side

In client side we can use this code to get timezone value of client using javascript.

<input type="hidden" id="timeZone" name="timeZone"/>
<script type="text/javascript" >
 function pad(number, length) {
                    var str = "" + number;
                    while (str.length < length) {
                        str = '0' + str;
                    }
                    return str;
                }
                var offset = new Date().getTimezoneOffset();

                offset = ((offset < 0 ? '+' : '-') + pad(parseInt(Math.abs(offset / 60)), 2) + ":" + pad(Math.abs(offset % 60), 2));
                alert(offset);
                $('#timeZone').val(offset);
</script>

function pad(number, length) {

var str = "" + number;

while (str.length < length) {

str = '0' + str;

}

return str;

}

var offset = new Date().getTimezoneOffset();

offset = ((offset < 0 ? '+' : '-') + pad(parseInt(Math.abs(offset / 60)), 2) + ":" + pad(Math.abs(offset % 60), 2));

alert(offset);

$('#timeZone').val(offset);

</script>

Reference: Getting user time zone