Class 4 Maths Worksheet: 24-Hour Clock

Maths worksheets lesson 30: The 24-hour clock and time taken · Set 684 · 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.Write 11:30 p.m. in 24-hour time. (a) 01:30 (b) 11:30 (c) 23:30
2. 2.How many hours are there from 06:00 to 10:00?
3. 3.What is 17:20 in 12-hour time? (a) 5:20 p.m. (b) 5:20 a.m. (c) 7:20 p.m.
4. 4.How many hours are there from 05:00 to 14:00?
5. 5.How many hours are there from 06:00 to 18:00?
6. 6.A match starts at 16:00 and lasts 2 hours 5 minutes. At what time does it end? (a) 19:05 (b) 18:05 (c) 17:05
7. 7.Write 11:50 p.m. in 24-hour time. (a) 11:50 (b) 23:50 (c) 01:50
8. 8.How many hours are there from 11:00 to 23:00?
9. 9.What is 22:05 in 12-hour time? (a) 10:05 a.m. (b) 10:05 p.m. (c) 12:05 p.m.
10. 10.What is 21:25 in 12-hour time? (a) 9:25 a.m. (b) 11:25 p.m. (c) 9:25 p.m.
11. 11.Write 8:55 a.m. in 24-hour time. (a) 20:55 (b) 08:55 (c) 10:55
12. 12.What is 23:10 in 12-hour time? (a) 11:10 p.m. (b) 11:10 a.m. (c) 1:10 p.m.
13. 13.Write 2:10 a.m. in 24-hour time. (a) 02:10 (b) 04:10 (c) 14:10
14. 14.What is 04:55 in 12-hour time? (a) 4:55 a.m. (b) 6:55 a.m. (c) 4:55 p.m.
15. 15.A film is 2 hours 5 minutes long. How many minutes is that?
16. 16.A match starts at 17:00 and lasts 1 hour 40 minutes. At what time does it end? (a) 18:40 (b) 17:40 (c) 19:40
17. 17.What is 22:45 in 12-hour time? (a) 12:45 p.m. (b) 10:45 p.m. (c) 10:45 a.m.
18. 18.Write 7:55 p.m. in 24-hour time. (a) 19:55 (b) 21:55 (c) 07:55
19. 19.Write 6:40 a.m. in 24-hour time. (a) 18:40 (b) 08:40 (c) 06:40
20. 20.A match starts at 10:05 and lasts 1 hour 15 minutes. At what time does it end? (a) 11:20 (b) 10:20 (c) 12:20
21. 21.A match starts at 16:40 and lasts 4 hours 20 minutes. At what time does it end? (a) 22:00 (b) 20:00 (c) 21:00
22. 22.Write 1:25 p.m. in 24-hour time. (a) 15:25 (b) 01:25 (c) 13:25
23. 23.Write 7:25 a.m. in 24-hour time. (a) 09:25 (b) 07:25 (c) 19:25
24. 24.How many hours are there from 05:00 to 10:00?
25. 25.Write 4:35 a.m. in 24-hour time. (a) 06:35 (b) 04:35 (c) 16:35
26. 26.A match starts at 08:25 and lasts 2 hours 55 minutes. At what time does it end? (a) 12:20 (b) 11:20 (c) 10:20
27. 27.Write 5:20 a.m. in 24-hour time. (a) 05:20 (b) 17:20 (c) 07:20
28. 28.A match starts at 08:05 and lasts 1 hour 15 minutes. At what time does it end? (a) 08:20 (b) 10:20 (c) 09:20
29. 29.How many hours are there from 06:00 to 11:00?
30. 30.What is 14:35 in 12-hour time? (a) 2:35 a.m. (b) 4:35 p.m. (c) 2:35 p.m.
31. 31.Write 9:45 a.m. in 24-hour time. (a) 09:45 (b) 11:45 (c) 21:45
32. 32.Write 1:40 a.m. in 24-hour time. (a) 03:40 (b) 01:40 (c) 13:40
33. 33.A train leaves at 12:35 and reaches at 14:10. How long is the journey (in minutes)?
34. 34.A match starts at 15:00 and lasts 4 hours 30 minutes. At what time does it end? (a) 19:30 (b) 18:30 (c) 20:30
35. 35.How many hours are there from 12:00 to 20:00?
36. 36.A film is 3 hours 55 minutes long. How many minutes is that?
37. 37.What is 16:00 in 12-hour time? (a) 6:00 p.m. (b) 4:00 p.m. (c) 4:00 a.m.
38. 38.How many hours are there from 06:00 to 20:00?
39. 39.A train leaves at 07:10 and reaches at 08:10. How long is the journey (in minutes)?
40. 40.A film is 1 hour 20 minutes long. How many minutes is that?

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