Class 4 Maths Worksheet: 24-Hour Clock

Maths worksheets lesson 30: The 24-hour clock and time taken · Set 99 · 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 22:30 in 12-hour time? (a) 10:30 a.m. (b) 12:30 p.m. (c) 10:30 p.m.
2. 2.How many hours are there from 11:00 to 16:00?
3. 3.A film is 4 hours 15 minutes long. How many minutes is that?
4. 4.A match starts at 08:05 and lasts 4 hours 55 minutes. At what time does it end? (a) 12:00 (b) 13:00 (c) 14:00
5. 5.A film is 3 hours 25 minutes long. How many minutes is that?
6. 6.What is 15:35 in 12-hour time? (a) 5:35 p.m. (b) 3:35 a.m. (c) 3:35 p.m.
7. 7.Write 4:40 a.m. in 24-hour time. (a) 04:40 (b) 06:40 (c) 16:40
8. 8.What is 21:20 in 12-hour time? (a) 9:20 a.m. (b) 11:20 p.m. (c) 9:20 p.m.
9. 9.How many hours are there from 09:00 to 17:00?
10. 10.A match starts at 16:15 and lasts 3 hours 25 minutes. At what time does it end? (a) 20:40 (b) 18:40 (c) 19:40
11. 11.Write 10:25 p.m. in 24-hour time. (a) 00:25 (b) 22:25 (c) 10:25
12. 12.What is 16:15 in 12-hour time? (a) 4:15 p.m. (b) 4:15 a.m. (c) 6:15 p.m.
13. 13.A match starts at 07:30 and lasts 1 hour 25 minutes. At what time does it end? (a) 07:55 (b) 09:55 (c) 08:55
14. 14.A train leaves at 12:40 and reaches at 13:10. How long is the journey (in minutes)?
15. 15.A match starts at 10:15 and lasts 3 hours 30 minutes. At what time does it end? (a) 14:45 (b) 12:45 (c) 13:45
16. 16.A train leaves at 17:15 and reaches at 19:50. How long is the journey (in minutes)?
17. 17.What is 17:15 in 12-hour time? (a) 5:15 a.m. (b) 7:15 p.m. (c) 5:15 p.m.
18. 18.Write 6:45 a.m. in 24-hour time. (a) 08:45 (b) 18:45 (c) 06:45
19. 19.A train leaves at 09:35 and reaches at 12:10. How long is the journey (in minutes)?
20. 20.Write 7:50 p.m. in 24-hour time. (a) 21:50 (b) 07:50 (c) 19:50
21. 21.A match starts at 08:55 and lasts 3 hours 15 minutes. At what time does it end? (a) 13:10 (b) 11:10 (c) 12:10
22. 22.What is 18:35 in 12-hour time? (a) 8:35 p.m. (b) 6:35 p.m. (c) 6:35 a.m.
23. 23.A match starts at 07:45 and lasts 1 hour 15 minutes. At what time does it end? (a) 08:00 (b) 09:00 (c) 10:00
24. 24.A train leaves at 09:55 and reaches at 11:35. How long is the journey (in minutes)?
25. 25.A match starts at 16:50 and lasts 2 hours 40 minutes. At what time does it end? (a) 19:30 (b) 20:30 (c) 18:30
26. 26.How many hours are there from 12:00 to 21:00?
27. 27.A match starts at 13:30 and lasts 2 hours 55 minutes. At what time does it end? (a) 15:25 (b) 16:25 (c) 17:25
28. 28.Write 3:15 p.m. in 24-hour time. (a) 15:15 (b) 03:15 (c) 17:15
29. 29.What is 23:45 in 12-hour time? (a) 1:45 p.m. (b) 11:45 a.m. (c) 11:45 p.m.
30. 30.How many hours are there from 08:00 to 12:00?
31. 31.How many hours are there from 08:00 to 14:00?
32. 32.How many hours are there from 10:00 to 22:00?
33. 33.Write 2:20 p.m. in 24-hour time. (a) 14:20 (b) 16:20 (c) 02:20
34. 34.Write 5:15 a.m. in 24-hour time. (a) 07:15 (b) 05:15 (c) 17:15
35. 35.What is 03:50 in 12-hour time? (a) 3:50 p.m. (b) 3:50 a.m. (c) 5:50 a.m.
36. 36.Write 6:25 p.m. in 24-hour time. (a) 18:25 (b) 20:25 (c) 06:25
37. 37.A film is 1 hour 20 minutes long. How many minutes is that?
38. 38.How many hours are there from 05:00 to 19:00?
39. 39.How many hours are there from 08:00 to 21:00?
40. 40.A film is 2 hours 15 minutes long. How many minutes is that?

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