Class 4 Maths Worksheet: 24-Hour Clock

Maths worksheets lesson 30: The 24-hour clock and time taken · Set 721 · 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 19:45 in 12-hour time? (a) 9:45 p.m. (b) 7:45 p.m. (c) 7:45 a.m.
2. 2.A train leaves at 08:25 and reaches at 10:15. How long is the journey (in minutes)?
3. 3.Write 4:00 a.m. in 24-hour time. (a) 16:00 (b) 04:00 (c) 06:00
4. 4.A film is 1 hour 15 minutes long. How many minutes is that?
5. 5.Write 7:05 a.m. in 24-hour time. (a) 07:05 (b) 19:05 (c) 09:05
6. 6.A film is 3 hours 15 minutes long. How many minutes is that?
7. 7.Write 1:20 a.m. in 24-hour time. (a) 01:20 (b) 13:20 (c) 03:20
8. 8.A train leaves at 18:30 and reaches at 19:40. How long is the journey (in minutes)?
9. 9.Write 7:25 p.m. in 24-hour time. (a) 21:25 (b) 07:25 (c) 19:25
10. 10.A match starts at 11:20 and lasts 2 hours 55 minutes. At what time does it end? (a) 14:15 (b) 15:15 (c) 13:15
11. 11.A match starts at 16:00 and lasts 4 hours 15 minutes. At what time does it end? (a) 21:15 (b) 20:15 (c) 19:15
12. 12.A train leaves at 14:05 and reaches at 14:55. How long is the journey (in minutes)?
13. 13.A train leaves at 08:25 and reaches at 11:05. How long is the journey (in minutes)?
14. 14.A match starts at 07:05 and lasts 4 hours 35 minutes. At what time does it end? (a) 12:40 (b) 10:40 (c) 11:40
15. 15.What is 15:05 in 12-hour time? (a) 3:05 a.m. (b) 5:05 p.m. (c) 3:05 p.m.
16. 16.How many hours are there from 05:00 to 09:00?
17. 17.A film is 3 hours 30 minutes long. How many minutes is that?
18. 18.A film is 4 hours 20 minutes long. How many minutes is that?
19. 19.A match starts at 08:10 and lasts 2 hours 30 minutes. At what time does it end? (a) 10:40 (b) 09:40 (c) 11:40
20. 20.What is 21:25 in 12-hour time? (a) 11:25 p.m. (b) 9:25 a.m. (c) 9:25 p.m.
21. 21.A match starts at 08:15 and lasts 4 hours 50 minutes. At what time does it end? (a) 13:05 (b) 14:05 (c) 12:05
22. 22.Write 8:35 p.m. in 24-hour time. (a) 08:35 (b) 22:35 (c) 20:35
23. 23.What is 03:15 in 12-hour time? (a) 5:15 a.m. (b) 3:15 a.m. (c) 3:15 p.m.
24. 24.A film is 2 hours 10 minutes long. How many minutes is that?
25. 25.A match starts at 11:25 and lasts 3 hours 45 minutes. At what time does it end? (a) 16:10 (b) 15:10 (c) 14:10
26. 26.A match starts at 10:05 and lasts 1 hour. At what time does it end? (a) 10:05 (b) 12:05 (c) 11:05
27. 27.A film is 4 hours 5 minutes long. How many minutes is that?
28. 28.A match starts at 10:50 and lasts 3 hours 25 minutes. At what time does it end? (a) 15:15 (b) 14:15 (c) 13:15
29. 29.Write 11:35 a.m. in 24-hour time. (a) 11:35 (b) 23:35 (c) 13:35
30. 30.A match starts at 18:45 and lasts 4 hours 10 minutes. At what time does it end? (a) 22:55 (b) 23:55 (c) 21:55
31. 31.How many hours are there from 07:00 to 20:00?
32. 32.A train leaves at 06:55 and reaches at 08:35. How long is the journey (in minutes)?
33. 33.A train leaves at 18:55 and reaches at 20:35. How long is the journey (in minutes)?
34. 34.A train leaves at 14:00 and reaches at 16:05. How long is the journey (in minutes)?
35. 35.Write 2:55 a.m. in 24-hour time. (a) 04:55 (b) 02:55 (c) 14:55
36. 36.What is 02:30 in 12-hour time? (a) 2:30 p.m. (b) 4:30 a.m. (c) 2:30 a.m.
37. 37.A train leaves at 16:10 and reaches at 19:25. How long is the journey (in minutes)?
38. 38.A train leaves at 09:15 and reaches at 10:45. How long is the journey (in minutes)?
39. 39.A match starts at 14:00 and lasts 3 hours 5 minutes. At what time does it end? (a) 18:05 (b) 17:05 (c) 16:05
40. 40.How many hours are there from 05:00 to 23:00?

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