8 hours.
8 hours.
9
9 hours
Nine hours.
8 hours, 45mins
Four hours and thirty minutes.
one hour
(6.5+12k) hours where k is an integer.
11hrs 30 minutes
9:30am to 5:30pm the same day is eight hours.
1275
two hours forty-five minutes 0:45 + 1:00 + 1:00 = 2:45