Class 4 Maths Worksheet: 24-Hour Clock

Maths worksheets lesson 30: The 24-hour clock and time taken · Set 83 · 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 13:00 in 12-hour time? (a) 1:00 p.m. (b) 1:00 a.m. (c) 3:00 p.m.
2. 2.How many hours are there from 05:00 to 13:00?
3. 3.Write 2:30 p.m. in 24-hour time. (a) 02:30 (b) 14:30 (c) 16:30
4. 4.What is 14:00 in 12-hour time? (a) 2:00 a.m. (b) 2:00 p.m. (c) 4:00 p.m.
5. 5.How many hours are there from 11:00 to 20:00?
6. 6.Write 10:15 p.m. in 24-hour time. (a) 10:15 (b) 00:15 (c) 22:15
7. 7.Write 8:30 p.m. in 24-hour time. (a) 22:30 (b) 08:30 (c) 20:30
8. 8.A train leaves at 09:00 and reaches at 10:05. How long is the journey (in minutes)?
9. 9.A film is 3 hours 15 minutes long. How many minutes is that?
10. 10.A train leaves at 18:05 and reaches at 20:10. How long is the journey (in minutes)?
11. 11.What is 22:55 in 12-hour time? (a) 10:55 a.m. (b) 12:55 p.m. (c) 10:55 p.m.
12. 12.A film is 2 hours 15 minutes long. How many minutes is that?
13. 13.What is 04:30 in 12-hour time? (a) 6:30 a.m. (b) 4:30 a.m. (c) 4:30 p.m.
14. 14.Write 1:05 a.m. in 24-hour time. (a) 03:05 (b) 01:05 (c) 13:05
15. 15.A match starts at 15:50 and lasts 3 hours 55 minutes. At what time does it end? (a) 19:45 (b) 20:45 (c) 18:45
16. 16.A film is 2 hours 55 minutes long. How many minutes is that?
17. 17.Write 6:10 p.m. in 24-hour time. (a) 18:10 (b) 20:10 (c) 06:10
18. 18.What is 15:40 in 12-hour time? (a) 5:40 p.m. (b) 3:40 p.m. (c) 3:40 a.m.
19. 19.How many hours are there from 05:00 to 22:00?
20. 20.A train leaves at 12:00 and reaches at 14:55. How long is the journey (in minutes)?
21. 21.Write 7:35 p.m. in 24-hour time. (a) 07:35 (b) 21:35 (c) 19:35
22. 22.How many hours are there from 10:00 to 12:00?
23. 23.Write 2:05 p.m. in 24-hour time. (a) 16:05 (b) 14:05 (c) 02:05
24. 24.A train leaves at 18:30 and reaches at 18:55. How long is the journey (in minutes)?
25. 25.How many hours are there from 12:00 to 20:00?
26. 26.What is 07:55 in 12-hour time? (a) 7:55 a.m. (b) 9:55 a.m. (c) 7:55 p.m.
27. 27.Write 6:30 p.m. in 24-hour time. (a) 18:30 (b) 06:30 (c) 20:30
28. 28.How many hours are there from 05:00 to 07:00?
29. 29.Write 4:25 a.m. in 24-hour time. (a) 04:25 (b) 16:25 (c) 06:25
30. 30.How many hours are there from 06:00 to 10:00?
31. 31.How many hours are there from 05:00 to 15:00?
32. 32.A train leaves at 06:55 and reaches at 10:05. How long is the journey (in minutes)?
33. 33.What is 21:45 in 12-hour time? (a) 9:45 a.m. (b) 9:45 p.m. (c) 11:45 p.m.
34. 34.What is 15:25 in 12-hour time? (a) 5:25 p.m. (b) 3:25 a.m. (c) 3:25 p.m.
35. 35.A train leaves at 09:50 and reaches at 12:50. How long is the journey (in minutes)?
36. 36.A match starts at 06:10 and lasts 4 hours 15 minutes. At what time does it end? (a) 10:25 (b) 09:25 (c) 11:25
37. 37.A train leaves at 15:20 and reaches at 16:00. How long is the journey (in minutes)?
38. 38.A train leaves at 12:50 and reaches at 15:30. How long is the journey (in minutes)?
39. 39.How many hours are there from 07:00 to 14:00?
40. 40.A match starts at 07:05 and lasts 4 hours 20 minutes. At what time does it end? (a) 10:25 (b) 12:25 (c) 11:25

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