6 hours and 45 minutes.
8 hours, 55 minutes
48900 minutes
It is 3:45.
It is 6.5 + 12k hours where k is an integer.
It is 4 hours and 15 minutes.
It is 4 hours and 30 minutes.
There are eight hours and fifteen minutes between 815 am and 430 pm. 4:15 is 8:15 to 12:30 4:00 is 12:30 to 16:30 8:15 = 4:15 + 4:00
19:50 hours is 7:50 pm, so between then and 8:15pm is 25 minutes
It is 6 hours and 35 minutes.
9 hours, 15 minutes 9.25 hours 9 and 1/4 hours
6 hours and 40 minutes, or 6 and 2/3 hours.