Start – End Date/Time range

hi, i test for use range with this
https://xdsoft.net/jqplugins/datetimepicker/#range

but not work, use this code:

jQuery(document).ready(function( $ ){
   jQuery(function(){
 jQuery('.date1 input[type=text]').datetimepicker({
  format:'DD/MM/YYYY h:mm a',
  onShow:function( ct ){
   this.setOptions({
    maxDate:jQuery('.date2 input[type=text]').val()?jQuery('.date2 input[type=text]').val():false
   })
  },
  timepicker:true
 });
 jQuery('.date2 input[type=text]').datetimepicker({
  format:'DD/MM/YYYY h:mm a',
  onShow:function( ct ){
   this.setOptions({
    minDate:jQuery('.date1 input[type=text]').val()?jQuery('.date1 input[type=text]').val():false
   })
  },
  timepicker:true
 });
});
});

thanks

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