Class 4 Maths Worksheet: 24-Hour Clock

Maths worksheets lesson 30: The 24-hour clock and time taken · Set 225 · 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 10:20 p.m. in 24-hour time. (a) 10:20 (b) 22:20 (c) 00:20
2. 2.A train leaves at 12:35 and reaches at 15:15. How long is the journey (in minutes)?
3. 3.What is 15:05 in 12-hour time? (a) 3:05 p.m. (b) 3:05 a.m. (c) 5:05 p.m.
4. 4.A train leaves at 07:45 and reaches at 08:55. How long is the journey (in minutes)?
5. 5.How many hours are there from 08:00 to 21:00?
6. 6.A train leaves at 12:00 and reaches at 13:05. How long is the journey (in minutes)?
7. 7.A train leaves at 17:00 and reaches at 17:25. How long is the journey (in minutes)?
8. 8.How many hours are there from 09:00 to 11:00?
9. 9.Write 7:05 p.m. in 24-hour time. (a) 21:05 (b) 07:05 (c) 19:05
10. 10.How many hours are there from 11:00 to 14:00?
11. 11.A film is 4 hours 25 minutes long. How many minutes is that?
12. 12.A match starts at 12:50 and lasts 1 hour 10 minutes. At what time does it end? (a) 15:00 (b) 14:00 (c) 13:00
13. 13.A train leaves at 13:30 and reaches at 16:10. How long is the journey (in minutes)?
14. 14.What is 15:25 in 12-hour time? (a) 3:25 a.m. (b) 5:25 p.m. (c) 3:25 p.m.
15. 15.What is 20:05 in 12-hour time? (a) 10:05 p.m. (b) 8:05 p.m. (c) 8:05 a.m.
16. 16.How many hours are there from 08:00 to 13:00?
17. 17.A train leaves at 06:00 and reaches at 07:15. How long is the journey (in minutes)?
18. 18.How many hours are there from 10:00 to 13:00?
19. 19.A match starts at 11:30 and lasts 3 hours 25 minutes. At what time does it end? (a) 15:55 (b) 13:55 (c) 14:55
20. 20.What is 09:25 in 12-hour time? (a) 9:25 p.m. (b) 11:25 a.m. (c) 9:25 a.m.
21. 21.A film is 1 hour 5 minutes long. How many minutes is that?
22. 22.A train leaves at 14:10 and reaches at 15:00. How long is the journey (in minutes)?
23. 23.A train leaves at 15:10 and reaches at 18:15. How long is the journey (in minutes)?
24. 24.A film is 1 hour 50 minutes long. How many minutes is that?
25. 25.How many hours are there from 07:00 to 12:00?
26. 26.Write 6:25 a.m. in 24-hour time. (a) 18:25 (b) 06:25 (c) 08:25
27. 27.A film is 2 hours 45 minutes long. How many minutes is that?
28. 28.How many hours are there from 12:00 to 18:00?
29. 29.How many hours are there from 08:00 to 15:00?
30. 30.What is 01:40 in 12-hour time? (a) 1:40 p.m. (b) 3:40 a.m. (c) 1:40 a.m.
31. 31.A match starts at 17:30 and lasts 4 hours 5 minutes. At what time does it end? (a) 22:35 (b) 20:35 (c) 21:35
32. 32.A film is 4 hours 35 minutes long. How many minutes is that?
33. 33.What is 13:10 in 12-hour time? (a) 1:10 p.m. (b) 1:10 a.m. (c) 3:10 p.m.
34. 34.Write 8:15 a.m. in 24-hour time. (a) 20:15 (b) 08:15 (c) 10:15
35. 35.A train leaves at 14:40 and reaches at 15:10. How long is the journey (in minutes)?
36. 36.What is 13:45 in 12-hour time? (a) 3:45 p.m. (b) 1:45 a.m. (c) 1:45 p.m.
37. 37.A train leaves at 09:55 and reaches at 10:55. How long is the journey (in minutes)?
38. 38.A film is 4 hours 50 minutes long. How many minutes is that?
39. 39.Write 1:50 p.m. in 24-hour time. (a) 15:50 (b) 01:50 (c) 13:50
40. 40.Write 10:10 p.m. in 24-hour time. (a) 00:10 (b) 22:10 (c) 10:10

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