Class 4 Maths Worksheet: 24-Hour Clock

Maths worksheets lesson 30: The 24-hour clock and time taken · Set 271 · 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 9:35 a.m. in 24-hour time. (a) 11:35 (b) 09:35 (c) 21:35
2. 2.What is 08:35 in 12-hour time? (a) 10:35 a.m. (b) 8:35 a.m. (c) 8:35 p.m.
3. 3.What is 01:20 in 12-hour time? (a) 1:20 p.m. (b) 3:20 a.m. (c) 1:20 a.m.
4. 4.What is 19:15 in 12-hour time? (a) 7:15 p.m. (b) 9:15 p.m. (c) 7:15 a.m.
5. 5.A train leaves at 17:10 and reaches at 18:10. How long is the journey (in minutes)?
6. 6.How many hours are there from 08:00 to 21:00?
7. 7.A train leaves at 17:00 and reaches at 17:30. How long is the journey (in minutes)?
8. 8.What is 10:25 in 12-hour time? (a) 12:25 a.m. (b) 10:25 a.m. (c) 10:25 p.m.
9. 9.A train leaves at 10:20 and reaches at 10:50. How long is the journey (in minutes)?
10. 10.How many hours are there from 05:00 to 23:00?
11. 11.A film is 4 hours 25 minutes long. How many minutes is that?
12. 12.A film is 3 hours 50 minutes long. How many minutes is that?
13. 13.What is 02:55 in 12-hour time? (a) 2:55 p.m. (b) 2:55 a.m. (c) 4:55 a.m.
14. 14.What is 22:00 in 12-hour time? (a) 12:00 p.m. (b) 10:00 a.m. (c) 10:00 p.m.
15. 15.A film is 3 hours 5 minutes long. How many minutes is that?
16. 16.A film is 2 hours 15 minutes long. How many minutes is that?
17. 17.How many hours are there from 07:00 to 17:00?
18. 18.A train leaves at 17:00 and reaches at 20:20. How long is the journey (in minutes)?
19. 19.A film is 2 hours 25 minutes long. How many minutes is that?
20. 20.What is 21:40 in 12-hour time? (a) 11:40 p.m. (b) 9:40 a.m. (c) 9:40 p.m.
21. 21.A match starts at 07:05 and lasts 2 hours 55 minutes. At what time does it end? (a) 10:00 (b) 09:00 (c) 11:00
22. 22.Write 6:45 a.m. in 24-hour time. (a) 08:45 (b) 06:45 (c) 18:45
23. 23.What is 20:45 in 12-hour time? (a) 10:45 p.m. (b) 8:45 a.m. (c) 8:45 p.m.
24. 24.A match starts at 07:25 and lasts 1 hour 10 minutes. At what time does it end? (a) 07:35 (b) 08:35 (c) 09:35
25. 25.What is 05:50 in 12-hour time? (a) 5:50 a.m. (b) 5:50 p.m. (c) 7:50 a.m.
26. 26.What is 04:35 in 12-hour time? (a) 6:35 a.m. (b) 4:35 p.m. (c) 4:35 a.m.
27. 27.A train leaves at 07:20 and reaches at 08:15. How long is the journey (in minutes)?
28. 28.A match starts at 08:25 and lasts 2 hours 15 minutes. At what time does it end? (a) 09:40 (b) 10:40 (c) 11:40
29. 29.A film is 3 hours 10 minutes long. How many minutes is that?
30. 30.A train leaves at 13:25 and reaches at 14:00. How long is the journey (in minutes)?
31. 31.How many hours are there from 09:00 to 15:00?
32. 32.A film is 3 hours 55 minutes long. How many minutes is that?
33. 33.A match starts at 13:10 and lasts 3 hours 10 minutes. At what time does it end? (a) 16:20 (b) 15:20 (c) 17:20
34. 34.A film is 4 hours 55 minutes long. How many minutes is that?
35. 35.A train leaves at 18:00 and reaches at 19:55. How long is the journey (in minutes)?
36. 36.How many hours are there from 12:00 to 14:00?
37. 37.What is 23:30 in 12-hour time? (a) 1:30 p.m. (b) 11:30 a.m. (c) 11:30 p.m.
38. 38.Write 10:30 a.m. in 24-hour time. (a) 12:30 (b) 22:30 (c) 10:30
39. 39.How many hours are there from 09:00 to 14:00?
40. 40.What is 07:35 in 12-hour time? (a) 9:35 a.m. (b) 7:35 p.m. (c) 7:35 a.m.

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