Class 4 Maths Worksheet: 24-Hour Clock

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

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