Is there a way to have a "Time only" field?

Is there a way to have a "Time only" field?

I need a field that only captures the time.  I don't like the Date-Time field.  It is very clumsy for the user to input AND I need to sort by time separately.  PLEASE add a new field that is dedicated only for inputting time.  I don't need seconds just hours and minutes.  Bonus would be to change it from AM/PM to military/international time.

What do we need to do to make this a separate field???  

I don't want a work-around, I just need the field. 

Is there someone out there that knows how to create this field so that we can all use it?

Thank you