Class 4 Maths Worksheet: 24-Hour Clock

Maths worksheets lesson 30: The 24-hour clock and time taken · Set 350 · 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 3:05 a.m. in 24-hour time. (a) 03:05 (b) 15:05 (c) 05:05
2. 2.What is 23:30 in 12-hour time? (a) 11:30 a.m. (b) 11:30 p.m. (c) 1:30 p.m.
3. 3.What is 08:50 in 12-hour time? (a) 8:50 p.m. (b) 8:50 a.m. (c) 10:50 a.m.
4. 4.A match starts at 15:20 and lasts 4 hours 5 minutes. At what time does it end? (a) 19:25 (b) 18:25 (c) 20:25
5. 5.Write 6:45 p.m. in 24-hour time. (a) 18:45 (b) 06:45 (c) 20:45
6. 6.A match starts at 10:40 and lasts 4 hours. At what time does it end? (a) 13:40 (b) 15:40 (c) 14:40
7. 7.How many hours are there from 05:00 to 08:00?
8. 8.What is 15:45 in 12-hour time? (a) 3:45 a.m. (b) 3:45 p.m. (c) 5:45 p.m.
9. 9.A train leaves at 09:45 and reaches at 11:50. How long is the journey (in minutes)?
10. 10.What is 21:00 in 12-hour time? (a) 11:00 p.m. (b) 9:00 a.m. (c) 9:00 p.m.
11. 11.A film is 2 hours 50 minutes long. How many minutes is that?
12. 12.A match starts at 09:05 and lasts 4 hours 50 minutes. At what time does it end? (a) 12:55 (b) 13:55 (c) 14:55
13. 13.A film is 4 hours 35 minutes long. How many minutes is that?
14. 14.How many hours are there from 06:00 to 09:00?
15. 15.What is 17:25 in 12-hour time? (a) 5:25 a.m. (b) 5:25 p.m. (c) 7:25 p.m.
16. 16.How many hours are there from 06:00 to 08:00?
17. 17.A film is 1 hour 30 minutes long. How many minutes is that?
18. 18.How many hours are there from 06:00 to 14:00?
19. 19.How many hours are there from 05:00 to 14:00?
20. 20.How many hours are there from 09:00 to 23:00?
21. 21.What is 15:50 in 12-hour time? (a) 5:50 p.m. (b) 3:50 a.m. (c) 3:50 p.m.
22. 22.A train leaves at 19:50 and reaches at 21:50. How long is the journey (in minutes)?
23. 23.How many hours are there from 07:00 to 23:00?
24. 24.Write 3:25 p.m. in 24-hour time. (a) 17:25 (b) 03:25 (c) 15:25
25. 25.A match starts at 12:40 and lasts 1 hour 40 minutes. At what time does it end? (a) 15:20 (b) 14:20 (c) 13:20
26. 26.What is 03:45 in 12-hour time? (a) 3:45 a.m. (b) 5:45 a.m. (c) 3:45 p.m.
27. 27.Write 3:20 p.m. in 24-hour time. (a) 03:20 (b) 17:20 (c) 15:20
28. 28.Write 10:55 a.m. in 24-hour time. (a) 12:55 (b) 10:55 (c) 22:55
29. 29.How many hours are there from 06:00 to 13:00?
30. 30.A match starts at 11:20 and lasts 1 hour 35 minutes. At what time does it end? (a) 13:55 (b) 12:55 (c) 11:55
31. 31.A film is 1 hour 45 minutes long. How many minutes is that?
32. 32.How many hours are there from 09:00 to 16:00?
33. 33.What is 05:30 in 12-hour time? (a) 5:30 p.m. (b) 5:30 a.m. (c) 7:30 a.m.
34. 34.How many hours are there from 05:00 to 19:00?
35. 35.What is 07:55 in 12-hour time? (a) 9:55 a.m. (b) 7:55 a.m. (c) 7:55 p.m.
36. 36.A film is 4 hours 45 minutes long. How many minutes is that?
37. 37.What is 21:50 in 12-hour time? (a) 9:50 a.m. (b) 11:50 p.m. (c) 9:50 p.m.
38. 38.What is 14:55 in 12-hour time? (a) 2:55 a.m. (b) 2:55 p.m. (c) 4:55 p.m.
39. 39.A film is 3 hours 20 minutes long. How many minutes is that?
40. 40.Write 11:35 p.m. in 24-hour time. (a) 23:35 (b) 01:35 (c) 11:35

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