Class 4 Maths Worksheet: 24-Hour Clock

Maths worksheets lesson 30: The 24-hour clock and time taken · Set 471 · 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.How many hours are there from 12:00 to 16:00?
2. 2.Write 6:15 a.m. in 24-hour time. (a) 08:15 (b) 18:15 (c) 06:15
3. 3.Write 9:45 a.m. in 24-hour time. (a) 09:45 (b) 21:45 (c) 11:45
4. 4.A match starts at 09:05 and lasts 1 hour 50 minutes. At what time does it end? (a) 10:55 (b) 11:55 (c) 09:55
5. 5.Write 10:10 a.m. in 24-hour time. (a) 10:10 (b) 12:10 (c) 22:10
6. 6.A film is 2 hours 40 minutes long. How many minutes is that?
7. 7.What is 14:20 in 12-hour time? (a) 2:20 p.m. (b) 4:20 p.m. (c) 2:20 a.m.
8. 8.A train leaves at 18:30 and reaches at 21:00. How long is the journey (in minutes)?
9. 9.A match starts at 11:05 and lasts 4 hours 35 minutes. At what time does it end? (a) 15:40 (b) 14:40 (c) 16:40
10. 10.How many hours are there from 09:00 to 17:00?
11. 11.Write 5:05 p.m. in 24-hour time. (a) 05:05 (b) 17:05 (c) 19:05
12. 12.What is 18:55 in 12-hour time? (a) 6:55 p.m. (b) 6:55 a.m. (c) 8:55 p.m.
13. 13.A train leaves at 08:50 and reaches at 09:50. How long is the journey (in minutes)?
14. 14.Write 11:00 p.m. in 24-hour time. (a) 11:00 (b) 23:00 (c) 01:00
15. 15.What is 16:50 in 12-hour time? (a) 4:50 p.m. (b) 6:50 p.m. (c) 4:50 a.m.
16. 16.A film is 2 hours 30 minutes long. How many minutes is that?
17. 17.A match starts at 09:45 and lasts 1 hour 50 minutes. At what time does it end? (a) 10:35 (b) 12:35 (c) 11:35
18. 18.Write 2:50 a.m. in 24-hour time. (a) 14:50 (b) 02:50 (c) 04:50
19. 19.Write 4:00 p.m. in 24-hour time. (a) 04:00 (b) 18:00 (c) 16:00
20. 20.Write 1:10 a.m. in 24-hour time. (a) 03:10 (b) 01:10 (c) 13:10
21. 21.How many hours are there from 05:00 to 12:00?
22. 22.Write 2:40 p.m. in 24-hour time. (a) 14:40 (b) 02:40 (c) 16:40
23. 23.Write 5:30 p.m. in 24-hour time. (a) 19:30 (b) 17:30 (c) 05:30
24. 24.What is 23:45 in 12-hour time? (a) 11:45 p.m. (b) 1:45 p.m. (c) 11:45 a.m.
25. 25.A film is 1 hour 55 minutes long. How many minutes is that?
26. 26.A film is 3 hours 30 minutes long. How many minutes is that?
27. 27.A film is 4 hours 15 minutes long. How many minutes is that?
28. 28.A train leaves at 18:30 and reaches at 20:45. How long is the journey (in minutes)?
29. 29.How many hours are there from 10:00 to 17:00?
30. 30.A film is 3 hours 45 minutes long. How many minutes is that?
31. 31.Write 8:10 p.m. in 24-hour time. (a) 08:10 (b) 22:10 (c) 20:10
32. 32.A match starts at 17:45 and lasts 4 hours 30 minutes. At what time does it end? (a) 23:15 (b) 22:15 (c) 21:15
33. 33.What is 08:45 in 12-hour time? (a) 8:45 a.m. (b) 8:45 p.m. (c) 10:45 a.m.
34. 34.A film is 4 hours 40 minutes long. How many minutes is that?
35. 35.A train leaves at 08:35 and reaches at 09:55. How long is the journey (in minutes)?
36. 36.A match starts at 09:35 and lasts 1 hour 25 minutes. At what time does it end? (a) 12:00 (b) 11:00 (c) 10:00
37. 37.What is 19:00 in 12-hour time? (a) 9:00 p.m. (b) 7:00 a.m. (c) 7:00 p.m.
38. 38.What is 07:35 in 12-hour time? (a) 9:35 a.m. (b) 7:35 p.m. (c) 7:35 a.m.
39. 39.What is 13:10 in 12-hour time? (a) 3:10 p.m. (b) 1:10 p.m. (c) 1:10 a.m.
40. 40.A film is 4 hours 5 minutes long. How many minutes is that?

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