11:15 is 30 minutes before it. 12:15 is 30 minutes after it.
12:15
12:15
30 minutes.
1145
2:15.
12:20.
2 hours and 14 minutes.
11:45.
4 hours and 45 minutes.
4 hours and 45 minutes.
6 hours and 15 minutes.
1:30pm.
2 hours 25 minutes
2 hours, 22 minutes.