Class 4 Maths Worksheet: 24-Hour Clock

Maths worksheets lesson 30: The 24-hour clock and time taken · Set 392 · 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 3:30 a.m. in 24-hour time. (a) 15:30 (b) 05:30 (c) 03:30
2. 2.A train leaves at 13:20 and reaches at 15:55. How long is the journey (in minutes)?
3. 3.A film is 4 hours 40 minutes long. How many minutes is that?
4. 4.What is 13:00 in 12-hour time? (a) 1:00 a.m. (b) 3:00 p.m. (c) 1:00 p.m.
5. 5.What is 18:15 in 12-hour time? (a) 8:15 p.m. (b) 6:15 p.m. (c) 6:15 a.m.
6. 6.What is 11:40 in 12-hour time? (a) 11:40 p.m. (b) 1:40 a.m. (c) 11:40 a.m.
7. 7.How many hours are there from 10:00 to 15:00?
8. 8.What is 06:50 in 12-hour time? (a) 6:50 p.m. (b) 8:50 a.m. (c) 6:50 a.m.
9. 9.A train leaves at 15:45 and reaches at 18:00. How long is the journey (in minutes)?
10. 10.A match starts at 10:10 and lasts 2 hours 15 minutes. At what time does it end? (a) 13:25 (b) 11:25 (c) 12:25
11. 11.How many hours are there from 11:00 to 16:00?
12. 12.Write 9:15 a.m. in 24-hour time. (a) 11:15 (b) 09:15 (c) 21:15
13. 13.How many hours are there from 05:00 to 18:00?
14. 14.What is 10:05 in 12-hour time? (a) 12:05 a.m. (b) 10:05 p.m. (c) 10:05 a.m.
15. 15.Write 7:25 p.m. in 24-hour time. (a) 21:25 (b) 19:25 (c) 07:25
16. 16.What is 17:20 in 12-hour time? (a) 5:20 a.m. (b) 7:20 p.m. (c) 5:20 p.m.
17. 17.A match starts at 06:05 and lasts 1 hour 30 minutes. At what time does it end? (a) 08:35 (b) 07:35 (c) 06:35
18. 18.Write 9:35 a.m. in 24-hour time. (a) 11:35 (b) 21:35 (c) 09:35
19. 19.A film is 3 hours 20 minutes long. How many minutes is that?
20. 20.How many hours are there from 12:00 to 15:00?
21. 21.A train leaves at 08:25 and reaches at 09:40. How long is the journey (in minutes)?
22. 22.How many hours are there from 06:00 to 09:00?
23. 23.Write 5:10 a.m. in 24-hour time. (a) 07:10 (b) 05:10 (c) 17:10
24. 24.How many hours are there from 10:00 to 13:00?
25. 25.Write 6:55 a.m. in 24-hour time. (a) 18:55 (b) 08:55 (c) 06:55
26. 26.What is 14:25 in 12-hour time? (a) 2:25 p.m. (b) 4:25 p.m. (c) 2:25 a.m.
27. 27.What is 20:45 in 12-hour time? (a) 8:45 a.m. (b) 8:45 p.m. (c) 10:45 p.m.
28. 28.A train leaves at 17:15 and reaches at 19:20. How long is the journey (in minutes)?
29. 29.What is 19:40 in 12-hour time? (a) 7:40 a.m. (b) 9:40 p.m. (c) 7:40 p.m.
30. 30.A train leaves at 08:00 and reaches at 08:25. How long is the journey (in minutes)?
31. 31.Write 2:00 a.m. in 24-hour time. (a) 04:00 (b) 14:00 (c) 02:00
32. 32.What is 02:50 in 12-hour time? (a) 2:50 p.m. (b) 2:50 a.m. (c) 4:50 a.m.
33. 33.How many hours are there from 12:00 to 19:00?
34. 34.Write 8:10 a.m. in 24-hour time. (a) 20:10 (b) 08:10 (c) 10:10
35. 35.What is 09:40 in 12-hour time? (a) 11:40 a.m. (b) 9:40 p.m. (c) 9:40 a.m.
36. 36.What is 20:20 in 12-hour time? (a) 10:20 p.m. (b) 8:20 p.m. (c) 8:20 a.m.
37. 37.A film is 3 hours 35 minutes long. How many minutes is that?
38. 38.A match starts at 15:15 and lasts 4 hours 20 minutes. At what time does it end? (a) 19:35 (b) 20:35 (c) 18:35
39. 39.What is 07:05 in 12-hour time? (a) 7:05 p.m. (b) 7:05 a.m. (c) 9:05 a.m.
40. 40.A train leaves at 18:35 and reaches at 19:15. How long is the journey (in minutes)?

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