How to remove the seconds from TTime without resorting to TimeToStr(const datetime:TDateTime; const formatsettings:TFormatSettings)

How can the seconds be removed from a TTime variable without resorting to the extra overhead of using TimeToStr(const datetime:TDateTime; const formatsettings:TFormatSettings) to get the TTime value without the seconds?

ie this is what I need -> HH:MM:00.

Is there some kind of math operation (like ANDing or ORing the value with something) that can be performed?