How to get difference in days between two calendars in Datatimepicker

Question

How to get the difference between two datatimepickers : val and val2

 $("#datetimepicker7").on("dp.change", function (e) {
          var val = $('#datetimepicker7').data('date'); 
      var val2 = $('#datetimepicker6').data('date'); 

         $('#datetimepicker6').data("DateTimePicker").date(e.date);

            });

i tried

$("#datetimepicker7").on("dp.change", function (e) {
          var val = $('#datetimepicker7').data('date'); 
      var val2 = $('#datetimepicker6').data('date'); 
                var dateDifference = val - val2;

         $('#datetimepicker6').data("DateTimePicker").date(e.date);

but the result of datedifference is NaN

Possible duplicate of [date difference in days in javascript?](https://stackoverflow.com/questions/25075300/date-difference-in-days-in-javascript) — Radonirina Maminiaina, Jun 14 '19 at 12:39
@RadonirinaMaminiaina sorry but this method dont work for me — sitf18 sitf, Jun 14 '19 at 12:43
Please [edit] your question to show how you applied the answers to the proposed duplicate and how they didn't work for you. See [the help center article on duplicates](https://stackoverflow.com/help/duplicates). — Heretic Monkey, Jun 14 '19 at 12:46
@HereticMonkey the date is in format val2 = "09.12.2016 23:59:59 — sitf18 sitf, Jun 14 '19 at 13:15

score 0 · Answer 1 · answered Jun 14 '19 at 12:43

Well you can just substract to dates ie:

var dateDifference = date1 - date2;

This will give you the difference in milliseconds. Then you will have to do some math to convert those milliseconds to the time unit you may need. Let's do days for example.

(24 hours in a day, 3600 seconds in an hour, and 1000ms in a second)

var daysDifference = parseInt(dateDifference/(24*3600*1000));

Hope this helps.

How to get difference in days between two calendars in Datatimepicker

1 Answers1