Class 4 Maths Worksheet: 24-Hour Clock

Maths worksheets lesson 30: The 24-hour clock and time taken · Set 672 · 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.What is 19:45 in 12-hour time? (a) 9:45 p.m. (b) 7:45 a.m. (c) 7:45 p.m.
2. 2.A train leaves at 19:20 and reaches at 22:30. How long is the journey (in minutes)?
3. 3.A film is 1 hour 25 minutes long. How many minutes is that?
4. 4.What is 23:15 in 12-hour time? (a) 11:15 a.m. (b) 1:15 p.m. (c) 11:15 p.m.
5. 5.Write 6:00 a.m. in 24-hour time. (a) 18:00 (b) 06:00 (c) 08:00
6. 6.A film is 1 hour 50 minutes long. How many minutes is that?
7. 7.What is 21:35 in 12-hour time? (a) 11:35 p.m. (b) 9:35 a.m. (c) 9:35 p.m.
8. 8.A film is 3 hours 15 minutes long. How many minutes is that?
9. 9.Write 1:45 p.m. in 24-hour time. (a) 15:45 (b) 13:45 (c) 01:45
10. 10.How many hours are there from 06:00 to 23:00?
11. 11.A match starts at 15:35 and lasts 3 hours 45 minutes. At what time does it end? (a) 19:20 (b) 18:20 (c) 20:20
12. 12.Write 5:40 p.m. in 24-hour time. (a) 17:40 (b) 05:40 (c) 19:40
13. 13.How many hours are there from 07:00 to 23:00?
14. 14.A train leaves at 13:20 and reaches at 13:45. How long is the journey (in minutes)?
15. 15.Write 2:10 a.m. in 24-hour time. (a) 04:10 (b) 02:10 (c) 14:10
16. 16.A film is 1 hour 40 minutes long. How many minutes is that?
17. 17.A match starts at 06:00 and lasts 3 hours 15 minutes. At what time does it end? (a) 09:15 (b) 10:15 (c) 08:15
18. 18.A match starts at 06:40 and lasts 3 hours 35 minutes. At what time does it end? (a) 09:15 (b) 10:15 (c) 11:15
19. 19.A train leaves at 09:05 and reaches at 11:35. How long is the journey (in minutes)?
20. 20.A film is 3 hours 20 minutes long. How many minutes is that?
21. 21.A train leaves at 17:30 and reaches at 20:05. How long is the journey (in minutes)?
22. 22.Write 6:05 p.m. in 24-hour time. (a) 20:05 (b) 06:05 (c) 18:05
23. 23.Write 6:00 p.m. in 24-hour time. (a) 20:00 (b) 06:00 (c) 18:00
24. 24.Write 9:20 p.m. in 24-hour time. (a) 21:20 (b) 23:20 (c) 09:20
25. 25.What is 01:00 in 12-hour time? (a) 3:00 a.m. (b) 1:00 p.m. (c) 1:00 a.m.
26. 26.A film is 4 hours 35 minutes long. How many minutes is that?
27. 27.A film is 2 hours 5 minutes long. How many minutes is that?
28. 28.What is 14:45 in 12-hour time? (a) 2:45 a.m. (b) 2:45 p.m. (c) 4:45 p.m.
29. 29.Write 6:15 p.m. in 24-hour time. (a) 20:15 (b) 06:15 (c) 18:15
30. 30.How many hours are there from 09:00 to 16:00?
31. 31.What is 10:50 in 12-hour time? (a) 12:50 a.m. (b) 10:50 p.m. (c) 10:50 a.m.
32. 32.Write 1:00 a.m. in 24-hour time. (a) 13:00 (b) 03:00 (c) 01:00
33. 33.A match starts at 09:00 and lasts 4 hours 30 minutes. At what time does it end? (a) 12:30 (b) 13:30 (c) 14:30
34. 34.Write 7:40 p.m. in 24-hour time. (a) 21:40 (b) 07:40 (c) 19:40
35. 35.How many hours are there from 06:00 to 10:00?
36. 36.A match starts at 16:25 and lasts 1 hour 45 minutes. At what time does it end? (a) 19:10 (b) 18:10 (c) 17:10
37. 37.What is 06:20 in 12-hour time? (a) 6:20 a.m. (b) 8:20 a.m. (c) 6:20 p.m.
38. 38.Write 4:20 p.m. in 24-hour time. (a) 04:20 (b) 16:20 (c) 18:20
39. 39.A film is 1 hour 55 minutes long. How many minutes is that?
40. 40.What is 08:20 in 12-hour time? (a) 8:20 p.m. (b) 10:20 a.m. (c) 8:20 a.m.

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