Class 4 Maths Worksheet: 24-Hour Clock

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

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