Class 4 Maths Worksheet: 24-Hour Clock

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

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