I have to block (make non selectable by the user) the booked timing in rad time picker.. (I think we have to do with the time view of the rad time picker.)
Please examine the following link:
radtimepicker: how to disable specific times/hours
Need to set the Selected Time Zone in Rad Date and Time picker for the session (user based on the Master record selection)
Depending on your scenario and preferences you can save the desired settings in a different location - session, cookie, etc.
the Telerik team