Class 4 Maths Worksheet: 24-Hour Clock

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

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