【moment_js】
<!DOCTYPE html>
<html>
<head>
<script type='text/javascript'
src="http://momentjs.com/downloads/moment.min.js"></script>
</head>
<body>
<script type='text/javascript'>
var created_time = 1276808857;
var created_date = new Date(created_time * 1000);
var current_date = new Date();
document.writeln('Post: ' + moment(created_date).format())
document.writeln('<br/>');
document.writeln('Now: ' + moment(current_date).format());
</script>
</body>
</html>
