Does field data type matter when using datetimepicker?

[ChimpGamer]

Pretty much what the title says. I'm trying to get the date time picker working but for some reason it just won't work and my guess is that is because of the data type the field is using. Normally sometime like datetime or timestamp would be used right? But I'm working with milliseconds in a field. I'm formatting the milliseconds to a readable date time using carbon but that won't help the date time picker I guess. Anything I can do to work around this?