How To: Set the region for datetime in jQuery
The sample demonstrates how to set the region for jQuery
If the region is 'de'
Use the below code, and use reference to de region script
$.localise('js/jquery.datepick', 'de');
$('#datepicker').datepick('option', $.datepick.regional['de']);
$.datepick.setDefaults($.datepick.regional[''])
Other region formats in below link