Class 4 Maths Worksheet: 24-Hour Clock

Maths worksheets lesson 30: The 24-hour clock and time taken · Set 827 · 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.A match starts at 16:20 and lasts 4 hours 15 minutes. At what time does it end? (a) 20:35 (b) 19:35 (c) 21:35
2. 2.Write 3:55 a.m. in 24-hour time. (a) 05:55 (b) 15:55 (c) 03:55
3. 3.A train leaves at 16:40 and reaches at 18:50. How long is the journey (in minutes)?
4. 4.Write 4:00 a.m. in 24-hour time. (a) 06:00 (b) 04:00 (c) 16:00
5. 5.A train leaves at 06:00 and reaches at 07:25. How long is the journey (in minutes)?
6. 6.A train leaves at 13:20 and reaches at 16:40. How long is the journey (in minutes)?
7. 7.What is 04:15 in 12-hour time? (a) 4:15 a.m. (b) 6:15 a.m. (c) 4:15 p.m.
8. 8.A match starts at 13:25 and lasts 2 hours 50 minutes. At what time does it end? (a) 17:15 (b) 16:15 (c) 15:15
9. 9.A match starts at 11:35 and lasts 3 hours 25 minutes. At what time does it end? (a) 15:00 (b) 16:00 (c) 14:00
10. 10.A match starts at 18:15 and lasts 4 hours 15 minutes. At what time does it end? (a) 21:30 (b) 22:30 (c) 23:30
11. 11.How many hours are there from 11:00 to 21:00?
12. 12.A film is 2 hours 35 minutes long. How many minutes is that?
13. 13.Write 1:20 a.m. in 24-hour time. (a) 13:20 (b) 01:20 (c) 03:20
14. 14.What is 21:05 in 12-hour time? (a) 9:05 a.m. (b) 9:05 p.m. (c) 11:05 p.m.
15. 15.A train leaves at 07:55 and reaches at 08:40. How long is the journey (in minutes)?
16. 16.How many hours are there from 11:00 to 23:00?
17. 17.A match starts at 11:40 and lasts 1 hour 25 minutes. At what time does it end? (a) 13:05 (b) 12:05 (c) 14:05
18. 18.Write 5:45 p.m. in 24-hour time. (a) 05:45 (b) 19:45 (c) 17:45
19. 19.A train leaves at 15:15 and reaches at 16:45. How long is the journey (in minutes)?
20. 20.Write 10:00 a.m. in 24-hour time. (a) 12:00 (b) 22:00 (c) 10:00
21. 21.Write 6:30 a.m. in 24-hour time. (a) 08:30 (b) 18:30 (c) 06:30
22. 22.How many hours are there from 09:00 to 21:00?
23. 23.What is 23:45 in 12-hour time? (a) 11:45 p.m. (b) 11:45 a.m. (c) 1:45 p.m.
24. 24.Write 2:50 a.m. in 24-hour time. (a) 04:50 (b) 02:50 (c) 14:50
25. 25.Write 3:50 a.m. in 24-hour time. (a) 15:50 (b) 03:50 (c) 05:50
26. 26.A train leaves at 10:10 and reaches at 11:25. How long is the journey (in minutes)?
27. 27.A train leaves at 14:15 and reaches at 17:25. How long is the journey (in minutes)?
28. 28.A film is 1 hour 5 minutes long. How many minutes is that?
29. 29.What is 17:05 in 12-hour time? (a) 5:05 a.m. (b) 7:05 p.m. (c) 5:05 p.m.
30. 30.How many hours are there from 08:00 to 17:00?
31. 31.A match starts at 14:40 and lasts 2 hours 55 minutes. At what time does it end? (a) 16:35 (b) 17:35 (c) 18:35
32. 32.Write 7:55 a.m. in 24-hour time. (a) 09:55 (b) 19:55 (c) 07:55
33. 33.What is 10:00 in 12-hour time? (a) 10:00 p.m. (b) 12:00 a.m. (c) 10:00 a.m.
34. 34.Write 7:20 a.m. in 24-hour time. (a) 09:20 (b) 19:20 (c) 07:20
35. 35.A film is 2 hours 55 minutes long. How many minutes is that?
36. 36.What is 07:15 in 12-hour time? (a) 9:15 a.m. (b) 7:15 a.m. (c) 7:15 p.m.
37. 37.Write 8:30 a.m. in 24-hour time. (a) 20:30 (b) 10:30 (c) 08:30
38. 38.How many hours are there from 12:00 to 20:00?
39. 39.What is 03:25 in 12-hour time? (a) 3:25 a.m. (b) 5:25 a.m. (c) 3:25 p.m.
40. 40.A film is 2 hours 50 minutes long. How many minutes is that?

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