Hello Kevin,

Thank you so much for this feature request.

I can definitely see the value in it and I have approved it. In case the votes for it go up we will consider adding in the RoadMap for future implementation.

Meanwhile, you could format the date value displayed in the Filter programmatically. I wrote this function that seems to do the job and here is a runnable Dojo that shows it in action:

• https://dojo.telerik.com/ODeGUKuN

$("#filter").kendoFilter({
        change: formatDates
      });

function formatDates(e) {
        var datePicker = $("input[data-role='datepicker']").data("kendoDatePicker");
        datePicker.setOptions({
          format: "yyyy-MM-dd"
        })
      }

Let me know in case you have further questions or ideas regarding this future functionality.

Regards,
Nikolay
Progress Telerik