Class 4 Maths Worksheet: 24-Hour Clock

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

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