Show different-different time in different zone using javascript

<script type="text/javascript">
        var dt = jQuery.noConflict();
        dt(document).ready(function () {
            showTime();
            showdate();
        });

        function showdate()
        {
            var x = new Date();
            var x1 = (x.getMonth() + 1) + "/" + x.getDate() + "/" + x.getFullYear();
            document.getElementById('lblct').innerHTML = x1;
            window.setTimeout("showdate()", 1000);
        }

        function showTime()
        {
            var d = new Date();
            var hour = d.getHours() == 0 ? 12 : (d.getHours() > 12 ? d.getHours() - 12 : d.getHours());
            var min = d.getMinutes() < 10 ? '0' + d.getMinutes() : d.getMinutes();
            var ampm = d.getHours() < 12 ? 'AM' : 'PM';
            var time = hour + ':' + min + ' ' + ampm;
            document.getElementById('lbldate').innerHTML = time;
            window.setTimeout("showTime()", 1000);
        }
  </script>