You have a good point and I agree with your suggested approach. I have unfortunately a user required to offer the user the ability to select a date (year, month, day) with the ability to select time (hours, minutes). What I have managed to do in the mean time is create a user control that contains a RadDatePicker (no clock) with a two RadComboBox controls - one for Hours 0-23 and one for Minutes 0 to 59. This way the user can select his/her exact date and time. I do have some issues with this approach as I end up binding a DateTime property in a RIA Services Entity which has some attributes and custom attribute (class validations) attached to it. Refer my post here: http://www.telerik.com/community/forums/silverlight/datetime-picker/validating-raddatetimepicker-in-user-control.aspx
I need some sort of viable solution to allow the user to select time down to a minute - I was hoping not to create a user control as described above and simply use the RadDateTimePicker a scrollable clock with a TimeInterval set to 00:01. I tried changing the Template as you suggest, but found it more challenging to achieve that I thought it would be.
Any further ideas are welcome.