Class 4 Maths Worksheet: 24-Hour Clock

Maths worksheets lesson 30: The 24-hour clock and time taken · Set 239 · 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 3:10 a.m. in 24-hour time. (a) 15:10 (b) 05:10 (c) 03:10
2. 2.What is 15:50 in 12-hour time? (a) 5:50 p.m. (b) 3:50 a.m. (c) 3:50 p.m.
3. 3.Write 2:40 p.m. in 24-hour time. (a) 02:40 (b) 14:40 (c) 16:40
4. 4.Write 2:50 p.m. in 24-hour time. (a) 02:50 (b) 16:50 (c) 14:50
5. 5.Write 6:10 p.m. in 24-hour time. (a) 20:10 (b) 18:10 (c) 06:10
6. 6.Write 6:15 p.m. in 24-hour time. (a) 20:15 (b) 18:15 (c) 06:15
7. 7.Write 6:40 p.m. in 24-hour time. (a) 06:40 (b) 20:40 (c) 18:40
8. 8.How many hours are there from 12:00 to 20:00?
9. 9.What is 19:00 in 12-hour time? (a) 7:00 p.m. (b) 9:00 p.m. (c) 7:00 a.m.
10. 10.What is 07:45 in 12-hour time? (a) 7:45 p.m. (b) 7:45 a.m. (c) 9:45 a.m.
11. 11.What is 20:10 in 12-hour time? (a) 10:10 p.m. (b) 8:10 p.m. (c) 8:10 a.m.
12. 12.How many hours are there from 09:00 to 14:00?
13. 13.Write 11:55 p.m. in 24-hour time. (a) 11:55 (b) 01:55 (c) 23:55
14. 14.A match starts at 16:40 and lasts 1 hour 45 minutes. At what time does it end? (a) 17:25 (b) 18:25 (c) 19:25
15. 15.A film is 1 hour 15 minutes long. How many minutes is that?
16. 16.A film is 4 hours 15 minutes long. How many minutes is that?
17. 17.A film is 1 hour 10 minutes long. How many minutes is that?
18. 18.A train leaves at 18:35 and reaches at 21:20. How long is the journey (in minutes)?
19. 19.Write 11:20 a.m. in 24-hour time. (a) 13:20 (b) 23:20 (c) 11:20
20. 20.Write 10:10 p.m. in 24-hour time. (a) 10:10 (b) 00:10 (c) 22:10
21. 21.How many hours are there from 05:00 to 16:00?
22. 22.What is 16:05 in 12-hour time? (a) 6:05 p.m. (b) 4:05 p.m. (c) 4:05 a.m.
23. 23.How many hours are there from 09:00 to 16:00?
24. 24.What is 16:25 in 12-hour time? (a) 4:25 p.m. (b) 4:25 a.m. (c) 6:25 p.m.
25. 25.What is 13:10 in 12-hour time? (a) 1:10 a.m. (b) 3:10 p.m. (c) 1:10 p.m.
26. 26.Write 10:05 a.m. in 24-hour time. (a) 12:05 (b) 10:05 (c) 22:05
27. 27.Write 3:15 p.m. in 24-hour time. (a) 17:15 (b) 03:15 (c) 15:15
28. 28.A match starts at 12:55 and lasts 2 hours 5 minutes. At what time does it end? (a) 15:00 (b) 16:00 (c) 14:00
29. 29.A film is 2 hours 5 minutes long. How many minutes is that?
30. 30.Write 5:30 p.m. in 24-hour time. (a) 17:30 (b) 05:30 (c) 19:30
31. 31.A train leaves at 08:25 and reaches at 09:55. How long is the journey (in minutes)?
32. 32.A match starts at 10:15 and lasts 2 hours 35 minutes. At what time does it end? (a) 11:50 (b) 12:50 (c) 13:50
33. 33.Write 2:35 a.m. in 24-hour time. (a) 14:35 (b) 04:35 (c) 02:35
34. 34.A match starts at 06:20 and lasts 3 hours 10 minutes. At what time does it end? (a) 08:30 (b) 09:30 (c) 10:30
35. 35.A film is 3 hours 10 minutes long. How many minutes is that?
36. 36.Write 3:00 p.m. in 24-hour time. (a) 17:00 (b) 03:00 (c) 15:00
37. 37.What is 08:20 in 12-hour time? (a) 10:20 a.m. (b) 8:20 p.m. (c) 8:20 a.m.
38. 38.A match starts at 09:40 and lasts 2 hours 50 minutes. At what time does it end? (a) 13:30 (b) 11:30 (c) 12:30
39. 39.How many hours are there from 12:00 to 18:00?
40. 40.A match starts at 15:40 and lasts 2 hours 55 minutes. At what time does it end? (a) 18:35 (b) 19:35 (c) 17:35

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