Class 4 Maths Worksheet: 24-Hour Clock

Maths worksheets lesson 30: The 24-hour clock and time taken · Set 85 · 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 4:15 a.m. in 24-hour time. (a) 16:15 (b) 04:15 (c) 06:15
2. 2.A match starts at 16:35 and lasts 3 hours 40 minutes. At what time does it end? (a) 21:15 (b) 20:15 (c) 19:15
3. 3.What is 05:15 in 12-hour time? (a) 5:15 p.m. (b) 7:15 a.m. (c) 5:15 a.m.
4. 4.Write 8:05 a.m. in 24-hour time. (a) 10:05 (b) 08:05 (c) 20:05
5. 5.How many hours are there from 10:00 to 21:00?
6. 6.Write 4:00 p.m. in 24-hour time. (a) 16:00 (b) 18:00 (c) 04:00
7. 7.A match starts at 10:45 and lasts 3 hours. At what time does it end? (a) 12:45 (b) 14:45 (c) 13:45
8. 8.A film is 2 hours 25 minutes long. How many minutes is that?
9. 9.What is 08:10 in 12-hour time? (a) 10:10 a.m. (b) 8:10 p.m. (c) 8:10 a.m.
10. 10.What is 03:30 in 12-hour time? (a) 5:30 a.m. (b) 3:30 a.m. (c) 3:30 p.m.
11. 11.A match starts at 12:45 and lasts 1 hour 40 minutes. At what time does it end? (a) 14:25 (b) 13:25 (c) 15:25
12. 12.Write 11:20 a.m. in 24-hour time. (a) 11:20 (b) 13:20 (c) 23:20
13. 13.How many hours are there from 06:00 to 14:00?
14. 14.A match starts at 12:10 and lasts 2 hours 30 minutes. At what time does it end? (a) 15:40 (b) 13:40 (c) 14:40
15. 15.A film is 3 hours 25 minutes long. How many minutes is that?
16. 16.How many hours are there from 06:00 to 10:00?
17. 17.Write 1:00 p.m. in 24-hour time. (a) 15:00 (b) 13:00 (c) 01:00
18. 18.A match starts at 08:00 and lasts 3 hours 55 minutes. At what time does it end? (a) 12:55 (b) 10:55 (c) 11:55
19. 19.Write 8:55 p.m. in 24-hour time. (a) 22:55 (b) 20:55 (c) 08:55
20. 20.A match starts at 13:10 and lasts 3 hours 15 minutes. At what time does it end? (a) 17:25 (b) 15:25 (c) 16:25
21. 21.Write 7:35 a.m. in 24-hour time. (a) 09:35 (b) 07:35 (c) 19:35
22. 22.How many hours are there from 05:00 to 09:00?
23. 23.A film is 4 hours 50 minutes long. How many minutes is that?
24. 24.How many hours are there from 09:00 to 19:00?
25. 25.What is 10:00 in 12-hour time? (a) 10:00 p.m. (b) 10:00 a.m. (c) 12:00 a.m.
26. 26.A match starts at 15:35 and lasts 1 hour 45 minutes. At what time does it end? (a) 17:20 (b) 16:20 (c) 18:20
27. 27.How many hours are there from 11:00 to 23:00?
28. 28.A train leaves at 14:05 and reaches at 16:20. How long is the journey (in minutes)?
29. 29.What is 03:00 in 12-hour time? (a) 5:00 a.m. (b) 3:00 a.m. (c) 3:00 p.m.
30. 30.A film is 3 hours 15 minutes long. How many minutes is that?
31. 31.What is 03:10 in 12-hour time? (a) 3:10 a.m. (b) 5:10 a.m. (c) 3:10 p.m.
32. 32.Write 2:45 a.m. in 24-hour time. (a) 04:45 (b) 02:45 (c) 14:45
33. 33.How many hours are there from 06:00 to 16:00?
34. 34.What is 10:05 in 12-hour time? (a) 12:05 a.m. (b) 10:05 p.m. (c) 10:05 a.m.
35. 35.What is 06:00 in 12-hour time? (a) 6:00 a.m. (b) 8:00 a.m. (c) 6:00 p.m.
36. 36.A train leaves at 08:05 and reaches at 08:45. How long is the journey (in minutes)?
37. 37.A train leaves at 14:00 and reaches at 16:35. How long is the journey (in minutes)?
38. 38.Write 5:50 a.m. in 24-hour time. (a) 07:50 (b) 17:50 (c) 05:50
39. 39.Write 10:00 a.m. in 24-hour time. (a) 10:00 (b) 12:00 (c) 22:00
40. 40.A match starts at 17:45 and lasts 3 hours 5 minutes. At what time does it end? (a) 21:50 (b) 19:50 (c) 20:50

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