Class 4 Maths Worksheet: 24-Hour Clock

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

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