Class 4 Maths Worksheet: 24-Hour Clock

Maths worksheets lesson 30: The 24-hour clock and time taken · Set 87 · 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 7:40 p.m. in 24-hour time. (a) 07:40 (b) 21:40 (c) 19:40
2. 2.Write 4:00 a.m. in 24-hour time. (a) 04:00 (b) 06:00 (c) 16:00
3. 3.What is 17:50 in 12-hour time? (a) 7:50 p.m. (b) 5:50 a.m. (c) 5:50 p.m.
4. 4.What is 17:15 in 12-hour time? (a) 7:15 p.m. (b) 5:15 p.m. (c) 5:15 a.m.
5. 5.What is 13:20 in 12-hour time? (a) 1:20 p.m. (b) 1:20 a.m. (c) 3:20 p.m.
6. 6.A train leaves at 12:50 and reaches at 15:55. How long is the journey (in minutes)?
7. 7.A match starts at 13:20 and lasts 4 hours 15 minutes. At what time does it end? (a) 17:35 (b) 16:35 (c) 18:35
8. 8.Write 2:10 a.m. in 24-hour time. (a) 04:10 (b) 02:10 (c) 14:10
9. 9.Write 9:40 a.m. in 24-hour time. (a) 11:40 (b) 21:40 (c) 09:40
10. 10.A film is 2 hours 20 minutes long. How many minutes is that?
11. 11.Write 2:35 a.m. in 24-hour time. (a) 04:35 (b) 14:35 (c) 02:35
12. 12.What is 01:55 in 12-hour time? (a) 3:55 a.m. (b) 1:55 p.m. (c) 1:55 a.m.
13. 13.Write 10:50 p.m. in 24-hour time. (a) 10:50 (b) 00:50 (c) 22:50
14. 14.How many hours are there from 05:00 to 13:00?
15. 15.A film is 4 hours 55 minutes long. How many minutes is that?
16. 16.What is 06:50 in 12-hour time? (a) 6:50 a.m. (b) 8:50 a.m. (c) 6:50 p.m.
17. 17.How many hours are there from 08:00 to 12:00?
18. 18.A film is 3 hours 30 minutes long. How many minutes is that?
19. 19.Write 5:55 p.m. in 24-hour time. (a) 05:55 (b) 19:55 (c) 17:55
20. 20.How many hours are there from 06:00 to 11:00?
21. 21.A film is 3 hours 20 minutes long. How many minutes is that?
22. 22.What is 23:20 in 12-hour time? (a) 11:20 a.m. (b) 1:20 p.m. (c) 11:20 p.m.
23. 23.A match starts at 09:25 and lasts 4 hours 10 minutes. At what time does it end? (a) 12:35 (b) 13:35 (c) 14:35
24. 24.Write 6:45 p.m. in 24-hour time. (a) 18:45 (b) 06:45 (c) 20:45
25. 25.Write 5:05 a.m. in 24-hour time. (a) 07:05 (b) 17:05 (c) 05:05
26. 26.A match starts at 10:15 and lasts 4 hours 25 minutes. At what time does it end? (a) 15:40 (b) 13:40 (c) 14:40
27. 27.A film is 2 hours 40 minutes long. How many minutes is that?
28. 28.Write 7:25 a.m. in 24-hour time. (a) 19:25 (b) 07:25 (c) 09:25
29. 29.How many hours are there from 06:00 to 08:00?
30. 30.What is 02:10 in 12-hour time? (a) 4:10 a.m. (b) 2:10 p.m. (c) 2:10 a.m.
31. 31.A train leaves at 13:40 and reaches at 14:55. How long is the journey (in minutes)?
32. 32.Write 9:05 p.m. in 24-hour time. (a) 23:05 (b) 09:05 (c) 21:05
33. 33.What is 22:45 in 12-hour time? (a) 12:45 p.m. (b) 10:45 p.m. (c) 10:45 a.m.
34. 34.How many hours are there from 10:00 to 20:00?
35. 35.A match starts at 08:05 and lasts 2 hours 55 minutes. At what time does it end? (a) 12:00 (b) 10:00 (c) 11:00
36. 36.Write 10:00 a.m. in 24-hour time. (a) 12:00 (b) 10:00 (c) 22:00
37. 37.A film is 4 hours 20 minutes long. How many minutes is that?
38. 38.What is 14:55 in 12-hour time? (a) 2:55 p.m. (b) 2:55 a.m. (c) 4:55 p.m.
39. 39.A train leaves at 19:10 and reaches at 22:05. How long is the journey (in minutes)?
40. 40.A film is 1 hour 15 minutes long. How many minutes is that?

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