Class 4 Maths Worksheet: 24-Hour Clock

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

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