Class 4 Maths Worksheet: 24-Hour Clock

Maths worksheets lesson 30: The 24-hour clock and time taken · Set 902 · 40 sums

The method (Add 12 after noon): a.m. → keep the hour, written with 2 digits: 07:15. p.m. → add 12 to the hour: 3:35 p.m. = 15:35. 24-hour back to 12-hour: hour more than 12 → take away 12 and say p.m. Time taken: count whole hours, then minutes. 1 hour = 60 minutes.

1. 1.What is 21:30 in 12-hour time? (a) 9:30 p.m. (b) 11:30 p.m. (c) 9:30 a.m.
2. 2.How many hours are there from 06:00 to 20:00?
3. 3.How many hours are there from 09:00 to 20:00?
4. 4.A film is 2 hours 5 minutes long. How many minutes is that?
5. 5.A match starts at 17:55 and lasts 4 hours 20 minutes. At what time does it end? (a) 21:15 (b) 23:15 (c) 22:15
6. 6.What is 05:05 in 12-hour time? (a) 5:05 a.m. (b) 7:05 a.m. (c) 5:05 p.m.
7. 7.A match starts at 15:00 and lasts 1 hour 45 minutes. At what time does it end? (a) 17:45 (b) 15:45 (c) 16:45
8. 8.How many hours are there from 08:00 to 21:00?
9. 9.A match starts at 15:15 and lasts 2 hours 30 minutes. At what time does it end? (a) 16:45 (b) 18:45 (c) 17:45
10. 10.Write 4:40 a.m. in 24-hour time. (a) 04:40 (b) 16:40 (c) 06:40
11. 11.Write 7:25 p.m. in 24-hour time. (a) 07:25 (b) 19:25 (c) 21:25
12. 12.A match starts at 07:25 and lasts 4 hours 30 minutes. At what time does it end? (a) 10:55 (b) 12:55 (c) 11:55
13. 13.A match starts at 11:15 and lasts 4 hours 30 minutes. At what time does it end? (a) 16:45 (b) 15:45 (c) 14:45
14. 14.What is 23:00 in 12-hour time? (a) 1:00 p.m. (b) 11:00 p.m. (c) 11:00 a.m.
15. 15.How many hours are there from 12:00 to 21:00?
16. 16.Write 8:00 p.m. in 24-hour time. (a) 22:00 (b) 20:00 (c) 08:00
17. 17.What is 14:10 in 12-hour time? (a) 2:10 p.m. (b) 2:10 a.m. (c) 4:10 p.m.
18. 18.What is 18:20 in 12-hour time? (a) 8:20 p.m. (b) 6:20 a.m. (c) 6:20 p.m.
19. 19.How many hours are there from 06:00 to 16:00?
20. 20.A film is 4 hours 50 minutes long. How many minutes is that?
21. 21.A match starts at 08:55 and lasts 1 hour 35 minutes. At what time does it end? (a) 11:30 (b) 09:30 (c) 10:30
22. 22.A film is 2 hours 15 minutes long. How many minutes is that?
23. 23.What is 09:45 in 12-hour time? (a) 9:45 p.m. (b) 11:45 a.m. (c) 9:45 a.m.
24. 24.What is 18:05 in 12-hour time? (a) 6:05 p.m. (b) 6:05 a.m. (c) 8:05 p.m.
25. 25.What is 17:00 in 12-hour time? (a) 5:00 p.m. (b) 7:00 p.m. (c) 5:00 a.m.
26. 26.Write 5:25 a.m. in 24-hour time. (a) 17:25 (b) 05:25 (c) 07:25
27. 27.What is 09:55 in 12-hour time? (a) 9:55 p.m. (b) 11:55 a.m. (c) 9:55 a.m.
28. 28.A film is 3 hours 35 minutes long. How many minutes is that?
29. 29.Write 8:20 a.m. in 24-hour time. (a) 20:20 (b) 08:20 (c) 10:20
30. 30.What is 11:10 in 12-hour time? (a) 11:10 a.m. (b) 1:10 a.m. (c) 11:10 p.m.
31. 31.A match starts at 18:05 and lasts 2 hours 45 minutes. At what time does it end? (a) 20:50 (b) 21:50 (c) 19:50
32. 32.A train leaves at 16:20 and reaches at 17:45. How long is the journey (in minutes)?
33. 33.Write 11:55 a.m. in 24-hour time. (a) 13:55 (b) 11:55 (c) 23:55
34. 34.A film is 3 hours 30 minutes long. How many minutes is that?
35. 35.A film is 1 hour 5 minutes long. How many minutes is that?
36. 36.A match starts at 15:35 and lasts 4 hours 25 minutes. At what time does it end? (a) 19:00 (b) 20:00 (c) 21:00
37. 37.A train leaves at 14:10 and reaches at 17:25. How long is the journey (in minutes)?
38. 38.A film is 4 hours 5 minutes long. How many minutes is that?
39. 39.A train leaves at 14:35 and reaches at 16:40. How long is the journey (in minutes)?
40. 40.A match starts at 08:50 and lasts 2 hours 15 minutes. At what time does it end? (a) 11:05 (b) 10:05 (c) 12:05

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