Class 4 Maths Worksheet: 24-Hour Clock

Maths worksheets lesson 30: The 24-hour clock and time taken · Set 710 · 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 11:15 a.m. in 24-hour time. (a) 23:15 (b) 13:15 (c) 11:15
2. 2.Write 4:05 a.m. in 24-hour time. (a) 04:05 (b) 16:05 (c) 06:05
3. 3.What is 16:35 in 12-hour time? (a) 6:35 p.m. (b) 4:35 p.m. (c) 4:35 a.m.
4. 4.A film is 2 hours 55 minutes long. How many minutes is that?
5. 5.What is 05:05 in 12-hour time? (a) 5:05 p.m. (b) 7:05 a.m. (c) 5:05 a.m.
6. 6.Write 7:30 a.m. in 24-hour time. (a) 07:30 (b) 19:30 (c) 09:30
7. 7.A match starts at 14:50 and lasts 4 hours 15 minutes. At what time does it end? (a) 20:05 (b) 18:05 (c) 19:05
8. 8.A film is 4 hours 5 minutes long. How many minutes is that?
9. 9.A film is 4 hours 35 minutes long. How many minutes is that?
10. 10.What is 20:25 in 12-hour time? (a) 8:25 a.m. (b) 10:25 p.m. (c) 8:25 p.m.
11. 11.A match starts at 18:50 and lasts 3 hours 55 minutes. At what time does it end? (a) 23:45 (b) 22:45 (c) 21:45
12. 12.Write 10:00 a.m. in 24-hour time. (a) 10:00 (b) 12:00 (c) 22:00
13. 13.A train leaves at 15:35 and reaches at 17:15. How long is the journey (in minutes)?
14. 14.A film is 3 hours 15 minutes long. How many minutes is that?
15. 15.A train leaves at 10:55 and reaches at 13:15. How long is the journey (in minutes)?
16. 16.How many hours are there from 10:00 to 13:00?
17. 17.How many hours are there from 06:00 to 19:00?
18. 18.Write 5:50 p.m. in 24-hour time. (a) 05:50 (b) 19:50 (c) 17:50
19. 19.A train leaves at 13:10 and reaches at 15:05. How long is the journey (in minutes)?
20. 20.What is 04:00 in 12-hour time? (a) 4:00 p.m. (b) 6:00 a.m. (c) 4:00 a.m.
21. 21.Write 11:00 p.m. in 24-hour time. (a) 01:00 (b) 11:00 (c) 23:00
22. 22.How many hours are there from 05:00 to 08:00?
23. 23.What is 11:45 in 12-hour time? (a) 1:45 a.m. (b) 11:45 p.m. (c) 11:45 a.m.
24. 24.How many hours are there from 05:00 to 16:00?
25. 25.What is 18:35 in 12-hour time? (a) 8:35 p.m. (b) 6:35 p.m. (c) 6:35 a.m.
26. 26.A film is 2 hours 40 minutes long. How many minutes is that?
27. 27.Write 8:30 a.m. in 24-hour time. (a) 20:30 (b) 10:30 (c) 08:30
28. 28.Write 3:10 a.m. in 24-hour time. (a) 03:10 (b) 05:10 (c) 15:10
29. 29.A film is 1 hour 30 minutes long. How many minutes is that?
30. 30.Write 2:25 p.m. in 24-hour time. (a) 14:25 (b) 02:25 (c) 16:25
31. 31.What is 22:20 in 12-hour time? (a) 10:20 p.m. (b) 12:20 p.m. (c) 10:20 a.m.
32. 32.What is 03:00 in 12-hour time? (a) 3:00 p.m. (b) 5:00 a.m. (c) 3:00 a.m.
33. 33.What is 21:30 in 12-hour time? (a) 9:30 p.m. (b) 9:30 a.m. (c) 11:30 p.m.
34. 34.A film is 1 hour 20 minutes long. How many minutes is that?
35. 35.A train leaves at 14:55 and reaches at 17:25. How long is the journey (in minutes)?
36. 36.A match starts at 07:55 and lasts 4 hours 25 minutes. At what time does it end? (a) 11:20 (b) 12:20 (c) 13:20
37. 37.A match starts at 11:10 and lasts 1 hour 25 minutes. At what time does it end? (a) 13:35 (b) 11:35 (c) 12:35
38. 38.How many hours are there from 08:00 to 19:00?
39. 39.A train leaves at 06:05 and reaches at 09:25. How long is the journey (in minutes)?
40. 40.What is 06:00 in 12-hour time? (a) 8:00 a.m. (b) 6:00 p.m. (c) 6:00 a.m.

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