10 hours and 15 minutes.
6 hours
Four hours exactly !
51 hours
16 = 11 + 5 1pm to midnight is 11 hours (12 - 11 = 1) then midnight to 5am is 5 hours
10 hours and 15 minutes.
12 hours 30 minutes exactly.
From 8PM to 1PM (the next day) is 17 hours.
2 hours
3 hours
6 hours
5 hours.
6 hours
Four hours exactly !
51 hours
5
7 of them.