Class 4 Maths Worksheet: 24-Hour Clock

Maths worksheets lesson 30: The 24-hour clock and time taken · Set 96 · 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 02:15 in 12-hour time? (a) 4:15 a.m. (b) 2:15 p.m. (c) 2:15 a.m.
2. 2.What is 16:20 in 12-hour time? (a) 6:20 p.m. (b) 4:20 p.m. (c) 4:20 a.m.
3. 3.What is 18:35 in 12-hour time? (a) 6:35 a.m. (b) 8:35 p.m. (c) 6:35 p.m.
4. 4.A match starts at 13:35 and lasts 4 hours 15 minutes. At what time does it end? (a) 18:50 (b) 17:50 (c) 16:50
5. 5.A match starts at 12:20 and lasts 4 hours 15 minutes. At what time does it end? (a) 16:35 (b) 17:35 (c) 15:35
6. 6.What is 10:15 in 12-hour time? (a) 10:15 a.m. (b) 12:15 a.m. (c) 10:15 p.m.
7. 7.Write 5:10 a.m. in 24-hour time. (a) 17:10 (b) 07:10 (c) 05:10
8. 8.Write 2:45 a.m. in 24-hour time. (a) 14:45 (b) 04:45 (c) 02:45
9. 9.A film is 1 hour 10 minutes long. How many minutes is that?
10. 10.How many hours are there from 11:00 to 16:00?
11. 11.A film is 1 hour 15 minutes long. How many minutes is that?
12. 12.Write 2:05 p.m. in 24-hour time. (a) 02:05 (b) 16:05 (c) 14:05
13. 13.A train leaves at 09:30 and reaches at 11:35. How long is the journey (in minutes)?
14. 14.What is 22:10 in 12-hour time? (a) 12:10 p.m. (b) 10:10 p.m. (c) 10:10 a.m.
15. 15.What is 09:15 in 12-hour time? (a) 9:15 p.m. (b) 11:15 a.m. (c) 9:15 a.m.
16. 16.A match starts at 18:15 and lasts 4 hours 15 minutes. At what time does it end? (a) 23:30 (b) 22:30 (c) 21:30
17. 17.Write 7:45 p.m. in 24-hour time. (a) 07:45 (b) 21:45 (c) 19:45
18. 18.Write 11:05 p.m. in 24-hour time. (a) 11:05 (b) 23:05 (c) 01:05
19. 19.Write 2:50 a.m. in 24-hour time. (a) 02:50 (b) 14:50 (c) 04:50
20. 20.How many hours are there from 12:00 to 21:00?
21. 21.Write 9:25 a.m. in 24-hour time. (a) 11:25 (b) 09:25 (c) 21:25
22. 22.Write 6:20 a.m. in 24-hour time. (a) 06:20 (b) 08:20 (c) 18:20
23. 23.A film is 1 hour 40 minutes long. How many minutes is that?
24. 24.A train leaves at 06:15 and reaches at 07:15. How long is the journey (in minutes)?
25. 25.A film is 3 hours 15 minutes long. How many minutes is that?
26. 26.A train leaves at 10:15 and reaches at 12:05. How long is the journey (in minutes)?
27. 27.What is 15:20 in 12-hour time? (a) 3:20 a.m. (b) 5:20 p.m. (c) 3:20 p.m.
28. 28.Write 11:10 a.m. in 24-hour time. (a) 11:10 (b) 23:10 (c) 13:10
29. 29.How many hours are there from 06:00 to 17:00?
30. 30.A film is 4 hours 40 minutes long. How many minutes is that?
31. 31.A match starts at 14:40 and lasts 4 hours 45 minutes. At what time does it end? (a) 19:25 (b) 20:25 (c) 18:25
32. 32.How many hours are there from 11:00 to 19:00?
33. 33.A train leaves at 14:50 and reaches at 15:15. How long is the journey (in minutes)?
34. 34.What is 20:30 in 12-hour time? (a) 8:30 p.m. (b) 10:30 p.m. (c) 8:30 a.m.
35. 35.What is 10:25 in 12-hour time? (a) 10:25 p.m. (b) 10:25 a.m. (c) 12:25 a.m.
36. 36.A film is 2 hours 50 minutes long. How many minutes is that?
37. 37.How many hours are there from 11:00 to 23:00?
38. 38.A film is 2 hours 30 minutes long. How many minutes is that?
39. 39.A match starts at 11:20 and lasts 1 hour 10 minutes. At what time does it end? (a) 11:30 (b) 13:30 (c) 12:30
40. 40.A match starts at 06:40 and lasts 2 hours 25 minutes. At what time does it end? (a) 08:05 (b) 10:05 (c) 09:05

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