Class 4 Maths Worksheet: 24-Hour Clock

Maths worksheets lesson 30: The 24-hour clock and time taken · Set 549 · 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 1:50 a.m. in 24-hour time. (a) 13:50 (b) 01:50 (c) 03:50
2. 2.How many hours are there from 09:00 to 17:00?
3. 3.Write 8:05 a.m. in 24-hour time. (a) 10:05 (b) 20:05 (c) 08:05
4. 4.Write 3:15 p.m. in 24-hour time. (a) 17:15 (b) 03:15 (c) 15:15
5. 5.A match starts at 13:55 and lasts 3 hours 35 minutes. At what time does it end? (a) 17:30 (b) 18:30 (c) 16:30
6. 6.How many hours are there from 12:00 to 15:00?
7. 7.A train leaves at 17:05 and reaches at 19:05. How long is the journey (in minutes)?
8. 8.How many hours are there from 12:00 to 14:00?
9. 9.Write 10:20 p.m. in 24-hour time. (a) 00:20 (b) 10:20 (c) 22:20
10. 10.A match starts at 14:20 and lasts 3 hours 25 minutes. At what time does it end? (a) 18:45 (b) 16:45 (c) 17:45
11. 11.How many hours are there from 06:00 to 20:00?
12. 12.A film is 1 hour 50 minutes long. How many minutes is that?
13. 13.Write 8:25 a.m. in 24-hour time. (a) 08:25 (b) 10:25 (c) 20:25
14. 14.What is 20:55 in 12-hour time? (a) 8:55 p.m. (b) 8:55 a.m. (c) 10:55 p.m.
15. 15.A match starts at 13:30 and lasts 1 hour 20 minutes. At what time does it end? (a) 14:50 (b) 13:50 (c) 15:50
16. 16.Write 7:45 p.m. in 24-hour time. (a) 19:45 (b) 21:45 (c) 07:45
17. 17.Write 7:25 a.m. in 24-hour time. (a) 07:25 (b) 09:25 (c) 19:25
18. 18.A match starts at 11:45 and lasts 1 hour. At what time does it end? (a) 13:45 (b) 12:45 (c) 11:45
19. 19.A match starts at 09:15 and lasts 1 hour 45 minutes. At what time does it end? (a) 11:00 (b) 10:00 (c) 12:00
20. 20.Write 8:40 a.m. in 24-hour time. (a) 08:40 (b) 10:40 (c) 20:40
21. 21.What is 16:10 in 12-hour time? (a) 4:10 a.m. (b) 6:10 p.m. (c) 4:10 p.m.
22. 22.Write 5:20 a.m. in 24-hour time. (a) 17:20 (b) 07:20 (c) 05:20
23. 23.How many hours are there from 11:00 to 18:00?
24. 24.A film is 2 hours 50 minutes long. How many minutes is that?
25. 25.Write 10:10 p.m. in 24-hour time. (a) 22:10 (b) 00:10 (c) 10:10
26. 26.A match starts at 09:15 and lasts 2 hours 45 minutes. At what time does it end? (a) 11:00 (b) 13:00 (c) 12:00
27. 27.A train leaves at 17:40 and reaches at 20:00. How long is the journey (in minutes)?
28. 28.A film is 4 hours 30 minutes long. How many minutes is that?
29. 29.How many hours are there from 05:00 to 23:00?
30. 30.Write 9:05 a.m. in 24-hour time. (a) 09:05 (b) 11:05 (c) 21:05
31. 31.A match starts at 14:50 and lasts 2 hours 50 minutes. At what time does it end? (a) 18:40 (b) 16:40 (c) 17:40
32. 32.A train leaves at 07:15 and reaches at 10:30. How long is the journey (in minutes)?
33. 33.What is 01:25 in 12-hour time? (a) 1:25 p.m. (b) 3:25 a.m. (c) 1:25 a.m.
34. 34.What is 02:55 in 12-hour time? (a) 4:55 a.m. (b) 2:55 a.m. (c) 2:55 p.m.
35. 35.Write 1:15 a.m. in 24-hour time. (a) 13:15 (b) 03:15 (c) 01:15
36. 36.Write 4:30 a.m. in 24-hour time. (a) 16:30 (b) 04:30 (c) 06:30
37. 37.What is 10:15 in 12-hour time? (a) 12:15 a.m. (b) 10:15 a.m. (c) 10:15 p.m.
38. 38.How many hours are there from 06:00 to 12:00?
39. 39.Write 5:10 p.m. in 24-hour time. (a) 05:10 (b) 17:10 (c) 19:10
40. 40.Write 7:00 a.m. in 24-hour time. (a) 19:00 (b) 07:00 (c) 09:00

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