Class 4 Maths Worksheet: 24-Hour Clock

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

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