Class 4 Maths Worksheet: 24-Hour Clock

Maths worksheets lesson 30: The 24-hour clock and time taken · Set 105 · 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 train leaves at 13:55 and reaches at 17:00. How long is the journey (in minutes)?
2. 2.A train leaves at 14:45 and reaches at 16:50. How long is the journey (in minutes)?
3. 3.A train leaves at 14:10 and reaches at 14:45. How long is the journey (in minutes)?
4. 4.What is 05:30 in 12-hour time? (a) 5:30 a.m. (b) 5:30 p.m. (c) 7:30 a.m.
5. 5.What is 21:40 in 12-hour time? (a) 9:40 a.m. (b) 11:40 p.m. (c) 9:40 p.m.
6. 6.What is 23:20 in 12-hour time? (a) 1:20 p.m. (b) 11:20 p.m. (c) 11:20 a.m.
7. 7.Write 1:40 p.m. in 24-hour time. (a) 15:40 (b) 13:40 (c) 01:40
8. 8.A train leaves at 16:10 and reaches at 18:35. How long is the journey (in minutes)?
9. 9.A film is 2 hours 45 minutes long. How many minutes is that?
10. 10.A train leaves at 11:10 and reaches at 14:10. How long is the journey (in minutes)?
11. 11.A film is 3 hours 10 minutes long. How many minutes is that?
12. 12.A train leaves at 09:15 and reaches at 11:15. How long is the journey (in minutes)?
13. 13.A match starts at 06:00 and lasts 1 hour 15 minutes. At what time does it end? (a) 07:15 (b) 06:15 (c) 08:15
14. 14.What is 03:00 in 12-hour time? (a) 3:00 p.m. (b) 3:00 a.m. (c) 5:00 a.m.
15. 15.What is 20:20 in 12-hour time? (a) 10:20 p.m. (b) 8:20 a.m. (c) 8:20 p.m.
16. 16.A match starts at 13:55 and lasts 1 hour 10 minutes. At what time does it end? (a) 16:05 (b) 15:05 (c) 14:05
17. 17.Write 5:40 a.m. in 24-hour time. (a) 17:40 (b) 05:40 (c) 07:40
18. 18.A film is 2 hours 15 minutes long. How many minutes is that?
19. 19.What is 19:05 in 12-hour time? (a) 7:05 a.m. (b) 7:05 p.m. (c) 9:05 p.m.
20. 20.Write 1:15 a.m. in 24-hour time. (a) 03:15 (b) 13:15 (c) 01:15
21. 21.A train leaves at 06:05 and reaches at 08:35. How long is the journey (in minutes)?
22. 22.A film is 3 hours 15 minutes long. How many minutes is that?
23. 23.Write 2:30 p.m. in 24-hour time. (a) 02:30 (b) 16:30 (c) 14:30
24. 24.Write 5:40 p.m. in 24-hour time. (a) 19:40 (b) 05:40 (c) 17:40
25. 25.How many hours are there from 12:00 to 22:00?
26. 26.A match starts at 09:35 and lasts 3 hours 45 minutes. At what time does it end? (a) 12:20 (b) 14:20 (c) 13:20
27. 27.Write 7:35 p.m. in 24-hour time. (a) 21:35 (b) 07:35 (c) 19:35
28. 28.Write 1:00 p.m. in 24-hour time. (a) 01:00 (b) 13:00 (c) 15:00
29. 29.How many hours are there from 10:00 to 13:00?
30. 30.How many hours are there from 09:00 to 21:00?
31. 31.A train leaves at 12:15 and reaches at 13:55. How long is the journey (in minutes)?
32. 32.A train leaves at 14:35 and reaches at 17:05. How long is the journey (in minutes)?
33. 33.How many hours are there from 12:00 to 20:00?
34. 34.A film is 2 hours 25 minutes long. How many minutes is that?
35. 35.Write 9:05 a.m. in 24-hour time. (a) 21:05 (b) 11:05 (c) 09:05
36. 36.Write 10:05 a.m. in 24-hour time. (a) 10:05 (b) 22:05 (c) 12:05
37. 37.Write 2:10 p.m. in 24-hour time. (a) 14:10 (b) 02:10 (c) 16:10
38. 38.What is 18:30 in 12-hour time? (a) 6:30 p.m. (b) 8:30 p.m. (c) 6:30 a.m.
39. 39.Write 6:10 p.m. in 24-hour time. (a) 20:10 (b) 06:10 (c) 18:10
40. 40.A film is 1 hour 10 minutes long. How many minutes is that?

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