It seems a bit strange as the DatePicker inherits from the DateTimePicker and there is no logic according to your description. Can you give us an example of the code you are using?
the Telerik team
Do you want to have your say when we set our development plans?
Do you want to know when a feature you care about is added or when a bug fixed?
Telerik Public Issue Tracking
system and vote to affect the priority of the items