Question

I have a start and stop textbox field which triggers jquery calendar. I want to know whether it is possible to achieve when I select a date on the start, will populate the same on the stop?

Answer 1

use onSelect callback to copy the start date into end date field.

$('#startDate').datepicker({
   onSelect: function(dateText, inst) { 
      $('#endDate').val($(this).val());
   }
});

EDIT::

$('#startDate).datetimepicker({
      ampm: true, 
      minDate: 0,
      onSelect: function(dateText, inst) { 
          $('#endDate').val($(this).val());
       }
}); 

EDIT for end date::

$('#endDate).datetimepicker({ ampm: true });

the two edits combined will make your entire code. Also you may want to add a if condition in onSelect to check if there is a value already in endDate so that you won’t accidentally overwrite it.