Class 4 Maths Worksheet: 24-Hour Clock

Maths worksheets lesson 30: The 24-hour clock and time taken · Set 231 · 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 08:50 in 12-hour time? (a) 8:50 p.m. (b) 8:50 a.m. (c) 10:50 a.m.
2. 2.Write 7:45 a.m. in 24-hour time. (a) 19:45 (b) 07:45 (c) 09:45
3. 3.A film is 4 hours 35 minutes long. How many minutes is that?
4. 4.A match starts at 16:20 and lasts 1 hour 55 minutes. At what time does it end? (a) 19:15 (b) 17:15 (c) 18:15
5. 5.Write 4:30 a.m. in 24-hour time. (a) 04:30 (b) 06:30 (c) 16:30
6. 6.A film is 4 hours 15 minutes long. How many minutes is that?
7. 7.What is 03:15 in 12-hour time? (a) 3:15 p.m. (b) 3:15 a.m. (c) 5:15 a.m.
8. 8.A train leaves at 17:40 and reaches at 19:45. How long is the journey (in minutes)?
9. 9.A match starts at 11:50 and lasts 1 hour 15 minutes. At what time does it end? (a) 12:05 (b) 14:05 (c) 13:05
10. 10.A train leaves at 14:05 and reaches at 14:35. How long is the journey (in minutes)?
11. 11.What is 10:30 in 12-hour time? (a) 12:30 a.m. (b) 10:30 p.m. (c) 10:30 a.m.
12. 12.Write 8:45 a.m. in 24-hour time. (a) 10:45 (b) 08:45 (c) 20:45
13. 13.What is 01:35 in 12-hour time? (a) 1:35 p.m. (b) 1:35 a.m. (c) 3:35 a.m.
14. 14.A train leaves at 13:50 and reaches at 15:35. How long is the journey (in minutes)?
15. 15.A film is 3 hours 15 minutes long. How many minutes is that?
16. 16.Write 10:45 p.m. in 24-hour time. (a) 10:45 (b) 22:45 (c) 00:45
17. 17.Write 5:35 p.m. in 24-hour time. (a) 17:35 (b) 05:35 (c) 19:35
18. 18.A match starts at 11:05 and lasts 2 hours 25 minutes. At what time does it end? (a) 12:30 (b) 14:30 (c) 13:30
19. 19.Write 6:10 a.m. in 24-hour time. (a) 18:10 (b) 08:10 (c) 06:10
20. 20.Write 6:50 p.m. in 24-hour time. (a) 20:50 (b) 18:50 (c) 06:50
21. 21.Write 9:30 p.m. in 24-hour time. (a) 23:30 (b) 09:30 (c) 21:30
22. 22.What is 02:30 in 12-hour time? (a) 4:30 a.m. (b) 2:30 a.m. (c) 2:30 p.m.
23. 23.A train leaves at 09:10 and reaches at 12:00. How long is the journey (in minutes)?
24. 24.A match starts at 16:20 and lasts 4 hours 55 minutes. At what time does it end? (a) 20:15 (b) 22:15 (c) 21:15
25. 25.What is 18:25 in 12-hour time? (a) 8:25 p.m. (b) 6:25 a.m. (c) 6:25 p.m.
26. 26.A train leaves at 08:10 and reaches at 10:25. How long is the journey (in minutes)?
27. 27.Write 3:05 a.m. in 24-hour time. (a) 15:05 (b) 03:05 (c) 05:05
28. 28.What is 08:10 in 12-hour time? (a) 8:10 p.m. (b) 8:10 a.m. (c) 10:10 a.m.
29. 29.What is 17:10 in 12-hour time? (a) 5:10 a.m. (b) 7:10 p.m. (c) 5:10 p.m.
30. 30.A film is 1 hour 25 minutes long. How many minutes is that?
31. 31.A match starts at 07:30 and lasts 4 hours 10 minutes. At what time does it end? (a) 12:40 (b) 10:40 (c) 11:40
32. 32.Write 8:25 p.m. in 24-hour time. (a) 08:25 (b) 22:25 (c) 20:25
33. 33.What is 08:55 in 12-hour time? (a) 8:55 p.m. (b) 8:55 a.m. (c) 10:55 a.m.
34. 34.What is 07:05 in 12-hour time? (a) 9:05 a.m. (b) 7:05 a.m. (c) 7:05 p.m.
35. 35.How many hours are there from 09:00 to 20:00?
36. 36.Write 11:15 a.m. in 24-hour time. (a) 23:15 (b) 13:15 (c) 11:15
37. 37.Write 3:45 a.m. in 24-hour time. (a) 03:45 (b) 15:45 (c) 05:45
38. 38.A match starts at 18:40 and lasts 3 hours 35 minutes. At what time does it end? (a) 22:15 (b) 23:15 (c) 21:15
39. 39.How many hours are there from 06:00 to 23:00?
40. 40.What is 20:20 in 12-hour time? (a) 10:20 p.m. (b) 8:20 a.m. (c) 8:20 p.m.

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