Class 4 Maths Worksheet: 24-Hour Clock

Maths worksheets lesson 30: The 24-hour clock and time taken · Set 65 · 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 7:00 a.m. in 24-hour time. (a) 09:00 (b) 07:00 (c) 19:00
2. 2.A film is 4 hours 25 minutes long. How many minutes is that?
3. 3.What is 02:25 in 12-hour time? (a) 2:25 p.m. (b) 2:25 a.m. (c) 4:25 a.m.
4. 4.Write 2:05 p.m. in 24-hour time. (a) 16:05 (b) 14:05 (c) 02:05
5. 5.Write 1:30 a.m. in 24-hour time. (a) 03:30 (b) 01:30 (c) 13:30
6. 6.A film is 2 hours 50 minutes long. How many minutes is that?
7. 7.A film is 3 hours 40 minutes long. How many minutes is that?
8. 8.A train leaves at 06:35 and reaches at 08:15. How long is the journey (in minutes)?
9. 9.A film is 3 hours 55 minutes long. How many minutes is that?
10. 10.A train leaves at 15:00 and reaches at 15:35. How long is the journey (in minutes)?
11. 11.How many hours are there from 10:00 to 20:00?
12. 12.Write 1:00 a.m. in 24-hour time. (a) 13:00 (b) 01:00 (c) 03:00
13. 13.What is 22:15 in 12-hour time? (a) 12:15 p.m. (b) 10:15 a.m. (c) 10:15 p.m.
14. 14.Write 1:25 a.m. in 24-hour time. (a) 01:25 (b) 03:25 (c) 13:25
15. 15.A match starts at 17:50 and lasts 4 hours 20 minutes. At what time does it end? (a) 23:10 (b) 21:10 (c) 22:10
16. 16.A train leaves at 07:35 and reaches at 10:40. How long is the journey (in minutes)?
17. 17.A match starts at 06:15 and lasts 4 hours. At what time does it end? (a) 11:15 (b) 10:15 (c) 09:15
18. 18.Write 8:50 p.m. in 24-hour time. (a) 20:50 (b) 22:50 (c) 08:50
19. 19.A train leaves at 08:30 and reaches at 11:40. How long is the journey (in minutes)?
20. 20.What is 23:00 in 12-hour time? (a) 1:00 p.m. (b) 11:00 a.m. (c) 11:00 p.m.
21. 21.A film is 4 hours 10 minutes long. How many minutes is that?
22. 22.How many hours are there from 10:00 to 23:00?
23. 23.Write 3:20 p.m. in 24-hour time. (a) 15:20 (b) 17:20 (c) 03:20
24. 24.What is 16:30 in 12-hour time? (a) 4:30 a.m. (b) 6:30 p.m. (c) 4:30 p.m.
25. 25.A film is 1 hour 20 minutes long. How many minutes is that?
26. 26.A match starts at 06:50 and lasts 2 hours 30 minutes. At what time does it end? (a) 10:20 (b) 09:20 (c) 08:20
27. 27.Write 7:35 p.m. in 24-hour time. (a) 07:35 (b) 21:35 (c) 19:35
28. 28.A match starts at 17:20 and lasts 3 hours 25 minutes. At what time does it end? (a) 20:45 (b) 19:45 (c) 21:45
29. 29.A match starts at 13:05 and lasts 2 hours 15 minutes. At what time does it end? (a) 15:20 (b) 14:20 (c) 16:20
30. 30.A match starts at 09:55 and lasts 1 hour 10 minutes. At what time does it end? (a) 10:05 (b) 11:05 (c) 12:05
31. 31.How many hours are there from 12:00 to 15:00?
32. 32.How many hours are there from 05:00 to 16:00?
33. 33.A film is 4 hours 50 minutes long. How many minutes is that?
34. 34.A film is 2 hours 40 minutes long. How many minutes is that?
35. 35.What is 05:40 in 12-hour time? (a) 5:40 p.m. (b) 5:40 a.m. (c) 7:40 a.m.
36. 36.What is 14:40 in 12-hour time? (a) 2:40 p.m. (b) 4:40 p.m. (c) 2:40 a.m.
37. 37.Write 8:40 p.m. in 24-hour time. (a) 08:40 (b) 20:40 (c) 22:40
38. 38.A train leaves at 17:30 and reaches at 19:50. How long is the journey (in minutes)?
39. 39.A train leaves at 16:35 and reaches at 18:30. How long is the journey (in minutes)?
40. 40.A match starts at 11:35 and lasts 4 hours 5 minutes. At what time does it end? (a) 14:40 (b) 16:40 (c) 15:40

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