I honestly suggest that you use moment.js. Just download moment.min.js and then use this snippet to get your date in whatever format you want:
<script>
$(document).ready(function() {
// set an element
$("#date").val( moment().format('MMM D, YYYY') );
// set a variable
var today = moment().format('D MMM, YYYY');
});
</script>
Use following chart for date formats:
