Class 4 Maths Worksheet: 24-Hour Clock

Maths worksheets lesson 30: The 24-hour clock and time taken · Set 365 · 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 2:00 p.m. in 24-hour time. (a) 16:00 (b) 14:00 (c) 02:00
2. 2.Write 5:10 a.m. in 24-hour time. (a) 07:10 (b) 05:10 (c) 17:10
3. 3.A train leaves at 14:25 and reaches at 17:15. How long is the journey (in minutes)?
4. 4.How many hours are there from 10:00 to 23:00?
5. 5.Write 4:00 a.m. in 24-hour time. (a) 04:00 (b) 06:00 (c) 16:00
6. 6.A film is 1 hour 15 minutes long. How many minutes is that?
7. 7.A train leaves at 16:05 and reaches at 16:40. How long is the journey (in minutes)?
8. 8.What is 01:35 in 12-hour time? (a) 3:35 a.m. (b) 1:35 a.m. (c) 1:35 p.m.
9. 9.A train leaves at 16:00 and reaches at 18:45. How long is the journey (in minutes)?
10. 10.A match starts at 09:05 and lasts 4 hours 45 minutes. At what time does it end? (a) 13:50 (b) 12:50 (c) 14:50
11. 11.What is 08:05 in 12-hour time? (a) 10:05 a.m. (b) 8:05 a.m. (c) 8:05 p.m.
12. 12.A film is 3 hours 30 minutes long. How many minutes is that?
13. 13.Write 6:15 a.m. in 24-hour time. (a) 06:15 (b) 08:15 (c) 18:15
14. 14.What is 01:40 in 12-hour time? (a) 3:40 a.m. (b) 1:40 p.m. (c) 1:40 a.m.
15. 15.A film is 3 hours 50 minutes long. How many minutes is that?
16. 16.What is 23:10 in 12-hour time? (a) 11:10 a.m. (b) 11:10 p.m. (c) 1:10 p.m.
17. 17.A train leaves at 16:30 and reaches at 18:05. How long is the journey (in minutes)?
18. 18.A train leaves at 12:25 and reaches at 13:05. How long is the journey (in minutes)?
19. 19.Write 2:25 a.m. in 24-hour time. (a) 14:25 (b) 02:25 (c) 04:25
20. 20.A match starts at 14:00 and lasts 3 hours 10 minutes. At what time does it end? (a) 17:10 (b) 18:10 (c) 16:10
21. 21.A train leaves at 08:40 and reaches at 09:10. How long is the journey (in minutes)?
22. 22.Write 9:55 a.m. in 24-hour time. (a) 21:55 (b) 11:55 (c) 09:55
23. 23.How many hours are there from 09:00 to 21:00?
24. 24.A match starts at 14:10 and lasts 1 hour 50 minutes. At what time does it end? (a) 15:00 (b) 17:00 (c) 16:00
25. 25.What is 11:05 in 12-hour time? (a) 11:05 p.m. (b) 1:05 a.m. (c) 11:05 a.m.
26. 26.A film is 1 hour 25 minutes long. How many minutes is that?
27. 27.Write 1:20 p.m. in 24-hour time. (a) 15:20 (b) 13:20 (c) 01:20
28. 28.How many hours are there from 07:00 to 13:00?
29. 29.A match starts at 07:25 and lasts 1 hour 30 minutes. At what time does it end? (a) 07:55 (b) 08:55 (c) 09:55
30. 30.Write 9:20 p.m. in 24-hour time. (a) 09:20 (b) 23:20 (c) 21:20
31. 31.What is 19:50 in 12-hour time? (a) 7:50 p.m. (b) 7:50 a.m. (c) 9:50 p.m.
32. 32.How many hours are there from 09:00 to 23:00?
33. 33.A train leaves at 07:35 and reaches at 08:00. How long is the journey (in minutes)?
34. 34.A match starts at 07:40 and lasts 2 hours 20 minutes. At what time does it end? (a) 11:00 (b) 10:00 (c) 09:00
35. 35.A train leaves at 11:10 and reaches at 11:40. How long is the journey (in minutes)?
36. 36.Write 2:15 p.m. in 24-hour time. (a) 16:15 (b) 02:15 (c) 14:15
37. 37.What is 21:35 in 12-hour time? (a) 9:35 p.m. (b) 9:35 a.m. (c) 11:35 p.m.
38. 38.Write 1:50 p.m. in 24-hour time. (a) 15:50 (b) 01:50 (c) 13:50
39. 39.A film is 3 hours 25 minutes long. How many minutes is that?
40. 40.A match starts at 13:30 and lasts 2 hours 40 minutes. At what time does it end? (a) 16:10 (b) 15:10 (c) 17:10

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