Class 4 Maths Worksheet: 24-Hour Clock

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

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