20.5 hours.
201/2 hours exactly.
3.416666 repeating hours 3 hours, 25 minutes
It is 4 hours and 15 minutes.
14 hours, and 30 minutes
6 hours and 30 minutes
8 hours.
From 9:55 to 12:30 is 2 hours and 35 minutes.
The time from 0530 to 1230 is 7 hours. To calculate this, you can subtract 0530 from 1230: 1230 - 0530 = 0700, which equals 7 hours.
3.5 hours.
14 hours 12 minutes.
Four
4