Class 4 Maths Worksheet: 24-Hour Clock

Maths worksheets lesson 30: The 24-hour clock and time taken · Set 421 · 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 4:35 p.m. in 24-hour time. (a) 18:35 (b) 04:35 (c) 16:35
2. 2.What is 04:00 in 12-hour time? (a) 6:00 a.m. (b) 4:00 p.m. (c) 4:00 a.m.
3. 3.Write 10:20 a.m. in 24-hour time. (a) 12:20 (b) 10:20 (c) 22:20
4. 4.A match starts at 08:15 and lasts 4 hours 25 minutes. At what time does it end? (a) 13:40 (b) 11:40 (c) 12:40
5. 5.A film is 1 hour 15 minutes long. How many minutes is that?
6. 6.What is 11:50 in 12-hour time? (a) 1:50 a.m. (b) 11:50 a.m. (c) 11:50 p.m.
7. 7.A train leaves at 12:35 and reaches at 13:50. How long is the journey (in minutes)?
8. 8.A train leaves at 11:10 and reaches at 14:20. How long is the journey (in minutes)?
9. 9.How many hours are there from 06:00 to 14:00?
10. 10.Write 9:05 p.m. in 24-hour time. (a) 09:05 (b) 23:05 (c) 21:05
11. 11.A train leaves at 12:00 and reaches at 14:35. How long is the journey (in minutes)?
12. 12.How many hours are there from 08:00 to 22:00?
13. 13.What is 09:20 in 12-hour time? (a) 11:20 a.m. (b) 9:20 a.m. (c) 9:20 p.m.
14. 14.Write 1:10 a.m. in 24-hour time. (a) 03:10 (b) 01:10 (c) 13:10
15. 15.A match starts at 10:45 and lasts 3 hours 30 minutes. At what time does it end? (a) 13:15 (b) 14:15 (c) 15:15
16. 16.What is 20:05 in 12-hour time? (a) 10:05 p.m. (b) 8:05 p.m. (c) 8:05 a.m.
17. 17.A match starts at 17:00 and lasts 4 hours 45 minutes. At what time does it end? (a) 22:45 (b) 20:45 (c) 21:45
18. 18.Write 11:10 p.m. in 24-hour time. (a) 01:10 (b) 23:10 (c) 11:10
19. 19.Write 11:30 a.m. in 24-hour time. (a) 13:30 (b) 11:30 (c) 23:30
20. 20.A film is 2 hours 50 minutes long. How many minutes is that?
21. 21.A film is 3 hours 5 minutes long. How many minutes is that?
22. 22.Write 11:50 a.m. in 24-hour time. (a) 13:50 (b) 23:50 (c) 11:50
23. 23.How many hours are there from 08:00 to 13:00?
24. 24.A film is 1 hour 50 minutes long. How many minutes is that?
25. 25.Write 3:20 a.m. in 24-hour time. (a) 15:20 (b) 03:20 (c) 05:20
26. 26.Write 11:30 p.m. in 24-hour time. (a) 23:30 (b) 01:30 (c) 11:30
27. 27.How many hours are there from 09:00 to 12:00?
28. 28.Write 8:05 p.m. in 24-hour time. (a) 20:05 (b) 08:05 (c) 22:05
29. 29.A film is 4 hours 30 minutes long. How many minutes is that?
30. 30.A train leaves at 11:45 and reaches at 12:30. How long is the journey (in minutes)?
31. 31.Write 11:05 a.m. in 24-hour time. (a) 13:05 (b) 23:05 (c) 11:05
32. 32.Write 3:25 p.m. in 24-hour time. (a) 03:25 (b) 17:25 (c) 15:25
33. 33.A train leaves at 06:20 and reaches at 08:40. How long is the journey (in minutes)?
34. 34.A train leaves at 15:30 and reaches at 17:25. How long is the journey (in minutes)?
35. 35.Write 1:25 p.m. in 24-hour time. (a) 13:25 (b) 15:25 (c) 01:25
36. 36.How many hours are there from 06:00 to 20:00?
37. 37.A train leaves at 07:35 and reaches at 09:30. How long is the journey (in minutes)?
38. 38.A match starts at 15:35 and lasts 4 hours 45 minutes. At what time does it end? (a) 21:20 (b) 19:20 (c) 20:20
39. 39.A film is 2 hours 10 minutes long. How many minutes is that?
40. 40.A match starts at 13:00 and lasts 4 hours 5 minutes. At what time does it end? (a) 17:05 (b) 18:05 (c) 16:05

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