I would like a control to accept durations in the format HH:MM, and persist as a number minutes (or maybe optionally fractional hours).  Something similar was suggested here (not by me):

http://www.telerik.com/forums/mobile-time-duration-picker

I have a time keeping application where user need to be able to enter summarize duration amounts on their timesheets, such as 8 hours of Holiday time (entered as "8:00").  It doesn't make sense to enter this as a time range.

We're accomplishing it now with a textbox, a masking library, and a bunch of fragile JS code, but I'd like a control that is natively build for this.