Kendo UI MVC Grid Popup editor display date field formatted

I have a mvc grid with a custom popup editor that I want to display a date time in. How do you format the date when using this type of binding?

<span type="date" data-format="MM/dd/yyyy" data-bind="text: CreatedOn"></span>

But is still shows up as: Thu Jun 18 2020 12:43:48 GMT-0500 (Central Daylight Time)