Class 4 Maths Worksheet: 24-Hour Clock

Maths worksheets lesson 30: The 24-hour clock and time taken · Set 640 · 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 1:10 a.m. in 24-hour time. (a) 01:10 (b) 03:10 (c) 13:10
2. 2.How many hours are there from 09:00 to 22:00?
3. 3.A train leaves at 09:00 and reaches at 12:05. How long is the journey (in minutes)?
4. 4.What is 05:30 in 12-hour time? (a) 7:30 a.m. (b) 5:30 a.m. (c) 5:30 p.m.
5. 5.A match starts at 10:50 and lasts 4 hours 55 minutes. At what time does it end? (a) 15:45 (b) 16:45 (c) 14:45
6. 6.What is 17:25 in 12-hour time? (a) 5:25 a.m. (b) 5:25 p.m. (c) 7:25 p.m.
7. 7.A train leaves at 12:30 and reaches at 13:35. How long is the journey (in minutes)?
8. 8.Write 4:50 p.m. in 24-hour time. (a) 18:50 (b) 16:50 (c) 04:50
9. 9.A film is 4 hours 30 minutes long. How many minutes is that?
10. 10.A match starts at 16:00 and lasts 1 hour 25 minutes. At what time does it end? (a) 18:25 (b) 17:25 (c) 16:25
11. 11.A match starts at 06:15 and lasts 1 hour 20 minutes. At what time does it end? (a) 06:35 (b) 08:35 (c) 07:35
12. 12.What is 22:15 in 12-hour time? (a) 10:15 a.m. (b) 12:15 p.m. (c) 10:15 p.m.
13. 13.What is 23:15 in 12-hour time? (a) 11:15 p.m. (b) 11:15 a.m. (c) 1:15 p.m.
14. 14.Write 9:45 p.m. in 24-hour time. (a) 09:45 (b) 21:45 (c) 23:45
15. 15.How many hours are there from 08:00 to 14:00?
16. 16.A film is 2 hours 25 minutes long. How many minutes is that?
17. 17.A train leaves at 17:55 and reaches at 21:10. How long is the journey (in minutes)?
18. 18.How many hours are there from 05:00 to 11:00?
19. 19.How many hours are there from 05:00 to 17:00?
20. 20.Write 4:05 p.m. in 24-hour time. (a) 18:05 (b) 04:05 (c) 16:05
21. 21.A match starts at 18:30 and lasts 3 hours. At what time does it end? (a) 22:30 (b) 20:30 (c) 21:30
22. 22.Write 7:40 p.m. in 24-hour time. (a) 21:40 (b) 19:40 (c) 07:40
23. 23.How many hours are there from 07:00 to 11:00?
24. 24.How many hours are there from 12:00 to 17:00?
25. 25.How many hours are there from 10:00 to 14:00?
26. 26.A train leaves at 09:50 and reaches at 12:30. How long is the journey (in minutes)?
27. 27.A train leaves at 08:55 and reaches at 11:30. How long is the journey (in minutes)?
28. 28.How many hours are there from 06:00 to 14:00?
29. 29.What is 01:30 in 12-hour time? (a) 3:30 a.m. (b) 1:30 p.m. (c) 1:30 a.m.
30. 30.A film is 1 hour 20 minutes long. How many minutes is that?
31. 31.A match starts at 17:40 and lasts 2 hours 25 minutes. At what time does it end? (a) 20:05 (b) 21:05 (c) 19:05
32. 32.A match starts at 06:00 and lasts 1 hour 20 minutes. At what time does it end? (a) 07:20 (b) 08:20 (c) 06:20
33. 33.Write 4:15 p.m. in 24-hour time. (a) 04:15 (b) 16:15 (c) 18:15
34. 34.A match starts at 11:20 and lasts 4 hours 25 minutes. At what time does it end? (a) 16:45 (b) 15:45 (c) 14:45
35. 35.What is 08:00 in 12-hour time? (a) 8:00 p.m. (b) 8:00 a.m. (c) 10:00 a.m.
36. 36.A match starts at 06:00 and lasts 3 hours 45 minutes. At what time does it end? (a) 09:45 (b) 10:45 (c) 08:45
37. 37.How many hours are there from 12:00 to 21:00?
38. 38.A train leaves at 14:25 and reaches at 16:35. How long is the journey (in minutes)?
39. 39.What is 07:00 in 12-hour time? (a) 9:00 a.m. (b) 7:00 p.m. (c) 7:00 a.m.
40. 40.What is 18:35 in 12-hour time? (a) 8:35 p.m. (b) 6:35 a.m. (c) 6:35 p.m.

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