Class 4 Maths Worksheet: 24-Hour Clock

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

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