Find the duration of time between
- 7:45 a.m. and 2:30 p.m.
- 10:15 a.m. and 5:00 p.m.
- 8:30 a.m. and 12:15 p.m.
- 9:15 a.m. and 7:30 p.m.
- 7:30 a.m. and 9:45 p.m.
- 4:30 a.m. and 9:15 a.m.
- 5:15 a.m. and 11:28 a.m.
- 2:30 p.m. and 11:38 p.m.
- 5:43 p.m. and 9.25 p.m.
- 2:30 hrs and 14.40 hrs
- 5:18 hrs and 9:07 hrs
- 15:12 hrs and 16:20 hrs
