Class 4 Maths Worksheet: 24-Hour Clock

Maths worksheets lesson 30: The 24-hour clock and time taken · Set 816 · 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 2:45 p.m. in 24-hour time. (a) 02:45 (b) 14:45 (c) 16:45
2. 2.Write 11:15 a.m. in 24-hour time. (a) 11:15 (b) 23:15 (c) 13:15
3. 3.A film is 1 hour 40 minutes long. How many minutes is that?
4. 4.How many hours are there from 05:00 to 11:00?
5. 5.A train leaves at 10:50 and reaches at 11:55. How long is the journey (in minutes)?
6. 6.Write 9:50 a.m. in 24-hour time. (a) 21:50 (b) 11:50 (c) 09:50
7. 7.What is 16:05 in 12-hour time? (a) 6:05 p.m. (b) 4:05 p.m. (c) 4:05 a.m.
8. 8.A match starts at 15:35 and lasts 3 hours 15 minutes. At what time does it end? (a) 18:50 (b) 17:50 (c) 19:50
9. 9.A match starts at 15:05 and lasts 3 hours 5 minutes. At what time does it end? (a) 18:10 (b) 19:10 (c) 17:10
10. 10.A film is 2 hours 5 minutes long. How many minutes is that?
11. 11.A match starts at 13:35 and lasts 3 hours 35 minutes. At what time does it end? (a) 17:10 (b) 18:10 (c) 16:10
12. 12.A film is 1 hour 5 minutes long. How many minutes is that?
13. 13.What is 07:05 in 12-hour time? (a) 7:05 p.m. (b) 7:05 a.m. (c) 9:05 a.m.
14. 14.What is 04:55 in 12-hour time? (a) 4:55 p.m. (b) 4:55 a.m. (c) 6:55 a.m.
15. 15.A match starts at 17:45 and lasts 4 hours 30 minutes. At what time does it end? (a) 23:15 (b) 21:15 (c) 22:15
16. 16.Write 2:40 p.m. in 24-hour time. (a) 16:40 (b) 14:40 (c) 02:40
17. 17.What is 03:10 in 12-hour time? (a) 3:10 a.m. (b) 3:10 p.m. (c) 5:10 a.m.
18. 18.A match starts at 12:00 and lasts 4 hours 15 minutes. At what time does it end? (a) 15:15 (b) 16:15 (c) 17:15
19. 19.How many hours are there from 09:00 to 22:00?
20. 20.How many hours are there from 12:00 to 22:00?
21. 21.What is 08:40 in 12-hour time? (a) 8:40 p.m. (b) 10:40 a.m. (c) 8:40 a.m.
22. 22.A train leaves at 11:35 and reaches at 14:50. How long is the journey (in minutes)?
23. 23.What is 02:25 in 12-hour time? (a) 4:25 a.m. (b) 2:25 a.m. (c) 2:25 p.m.
24. 24.What is 13:05 in 12-hour time? (a) 1:05 a.m. (b) 3:05 p.m. (c) 1:05 p.m.
25. 25.What is 20:15 in 12-hour time? (a) 8:15 a.m. (b) 8:15 p.m. (c) 10:15 p.m.
26. 26.What is 05:25 in 12-hour time? (a) 5:25 p.m. (b) 7:25 a.m. (c) 5:25 a.m.
27. 27.Write 9:45 p.m. in 24-hour time. (a) 09:45 (b) 21:45 (c) 23:45
28. 28.A train leaves at 17:45 and reaches at 18:10. How long is the journey (in minutes)?
29. 29.A film is 3 hours 20 minutes long. How many minutes is that?
30. 30.A film is 4 hours 25 minutes long. How many minutes is that?
31. 31.What is 20:20 in 12-hour time? (a) 10:20 p.m. (b) 8:20 p.m. (c) 8:20 a.m.
32. 32.What is 08:50 in 12-hour time? (a) 10:50 a.m. (b) 8:50 a.m. (c) 8:50 p.m.
33. 33.How many hours are there from 10:00 to 22:00?
34. 34.A film is 1 hour 30 minutes long. How many minutes is that?
35. 35.A match starts at 09:55 and lasts 4 hours 5 minutes. At what time does it end? (a) 13:00 (b) 14:00 (c) 15:00
36. 36.A train leaves at 10:45 and reaches at 13:55. How long is the journey (in minutes)?
37. 37.A match starts at 10:25 and lasts 1 hour 20 minutes. At what time does it end? (a) 11:45 (b) 10:45 (c) 12:45
38. 38.Write 4:25 p.m. in 24-hour time. (a) 18:25 (b) 04:25 (c) 16:25
39. 39.Write 7:55 a.m. in 24-hour time. (a) 19:55 (b) 09:55 (c) 07:55
40. 40.How many hours are there from 07:00 to 21:00?

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