We would like to know how to get date in seconds.
<!DOCTYPE html>
<html>
<body>
<script type='text/javascript'>
<!--from ww w . j a v a 2 s .c om-->
var d1 = Date.parse('Wed Jun 20 19:20:44 +0000 2012')/1000;
document.writeln(d1);
</script>
</body>
</html>
The code above is rendered as follows: