Calculate the elapsed time between:
12:30 P.M. and 2:00 P.M.
2:00 P.M. is greater than or equal to 12:30 P.M.
Borrow 60 minutes from 1 hour
We treat 12:00 as Hour Number 0
Answer in Hours = 2 - 0 + 1 = 1
Answer in Minutes = 60 + 00 - 30 = 30