How to check if one DateTime is later than another in javascript

Question

Through the form i am getting two values like

   Start datetime = \'01/12/2013 12:00:00 AM\' and
   End datetime = \'02/12/2013 12:00:00 AM\'.

Answer 1

its really simple in javascript

var startTime = new Date('01/12/2013 12:00:00 AM');
var endTime = new Date('02/12/2013 12:00:00 AM');

and then all you need to do is compare

if( startTime < endTime){
   alert("start time is lesser");
}

More on this here