We would like to know how to get Timezone offset of any time.
<!DOCTYPE html>
<html>
<head>
<script type='text/javascript'>
window.onload=function(){<!-- w ww .j av a 2s .c om-->
var summer = new Date(1403170847000);
document.writeln('Summer offset=' + summer.getTimezoneOffset());
document.writeln('<br/>');
var winter = new Date(1419500175000);
document.writeln('Winter offset=' + winter.getTimezoneOffset());
}
</script>
</head>
<body>
</body>
</html>
The code above is rendered as follows: