Step-by-step explanation:
1.
4:15 p.m. to 5.00 p.m. → 45min
5:00 p.m. to 10:00 p.m. → 5h
Answer: 5h 45min
2.
3:45 a.m. to 4.00 a.m. → 15min
4.00 a.m. to 12:00 p.m. → 8h
Answer: 8h 15min
3.
1:15 p.m. to 2:00 p.m. → 45min
2:00 p.m. 8:00 p.m. → 6h
8:00 p.m. to 8:11 p.m. → 11min
Answer: 6h (45 + 11)min = 6h 56min
4.
2:37 a.m. to 3:00 a.m. → 23min
3:00 a.m. to 3:15 a.m. → 15min
Answer: (23 + 15)min = 38min
5.
11:59 a.m. to 12:00 p.m. → 1min
12:00 p.m. to 1:00 p.m. → 1h
1:00 p.m. to 1:01 p.m. → 1min
Answer: 1h (1 + 1)min = 1h 2min
