Class 4 Maths Worksheet: 24-Hour Clock

Maths worksheets lesson 30: The 24-hour clock and time taken · Set 569 · 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.What is 20:10 in 12-hour time? (a) 8:10 a.m. (b) 10:10 p.m. (c) 8:10 p.m.
2. 2.A film is 4 hours 45 minutes long. How many minutes is that?
3. 3.What is 17:15 in 12-hour time? (a) 5:15 p.m. (b) 5:15 a.m. (c) 7:15 p.m.
4. 4.What is 19:10 in 12-hour time? (a) 7:10 a.m. (b) 9:10 p.m. (c) 7:10 p.m.
5. 5.A match starts at 13:45 and lasts 1 hour 10 minutes. At what time does it end? (a) 13:55 (b) 15:55 (c) 14:55
6. 6.A film is 1 hour 50 minutes long. How many minutes is that?
7. 7.Write 7:35 p.m. in 24-hour time. (a) 19:35 (b) 21:35 (c) 07:35
8. 8.Write 1:10 a.m. in 24-hour time. (a) 13:10 (b) 03:10 (c) 01:10
9. 9.How many hours are there from 10:00 to 22:00?
10. 10.What is 23:10 in 12-hour time? (a) 11:10 a.m. (b) 1:10 p.m. (c) 11:10 p.m.
11. 11.A match starts at 06:45 and lasts 2 hours 10 minutes. At what time does it end? (a) 08:55 (b) 07:55 (c) 09:55
12. 12.Write 7:40 p.m. in 24-hour time. (a) 21:40 (b) 19:40 (c) 07:40
13. 13.A match starts at 06:05 and lasts 3 hours 10 minutes. At what time does it end? (a) 09:15 (b) 10:15 (c) 08:15
14. 14.What is 08:00 in 12-hour time? (a) 10:00 a.m. (b) 8:00 a.m. (c) 8:00 p.m.
15. 15.A train leaves at 14:45 and reaches at 17:10. How long is the journey (in minutes)?
16. 16.What is 02:40 in 12-hour time? (a) 4:40 a.m. (b) 2:40 a.m. (c) 2:40 p.m.
17. 17.Write 10:00 p.m. in 24-hour time. (a) 00:00 (b) 22:00 (c) 10:00
18. 18.What is 22:00 in 12-hour time? (a) 10:00 p.m. (b) 10:00 a.m. (c) 12:00 p.m.
19. 19.What is 16:30 in 12-hour time? (a) 6:30 p.m. (b) 4:30 a.m. (c) 4:30 p.m.
20. 20.A train leaves at 06:40 and reaches at 08:40. How long is the journey (in minutes)?
21. 21.A film is 2 hours 30 minutes long. How many minutes is that?
22. 22.A film is 3 hours 15 minutes long. How many minutes is that?
23. 23.A match starts at 06:05 and lasts 2 hours 40 minutes. At what time does it end? (a) 09:45 (b) 07:45 (c) 08:45
24. 24.A match starts at 11:40 and lasts 4 hours 5 minutes. At what time does it end? (a) 16:45 (b) 14:45 (c) 15:45
25. 25.What is 17:55 in 12-hour time? (a) 5:55 a.m. (b) 7:55 p.m. (c) 5:55 p.m.
26. 26.Write 4:45 p.m. in 24-hour time. (a) 18:45 (b) 04:45 (c) 16:45
27. 27.How many hours are there from 08:00 to 16:00?
28. 28.A train leaves at 10:25 and reaches at 11:10. How long is the journey (in minutes)?
29. 29.A film is 1 hour 30 minutes long. How many minutes is that?
30. 30.What is 20:45 in 12-hour time? (a) 8:45 a.m. (b) 8:45 p.m. (c) 10:45 p.m.
31. 31.A match starts at 09:30 and lasts 1 hour 50 minutes. At what time does it end? (a) 10:20 (b) 12:20 (c) 11:20
32. 32.A train leaves at 08:35 and reaches at 11:20. How long is the journey (in minutes)?
33. 33.A film is 2 hours 35 minutes long. How many minutes is that?
34. 34.Write 3:15 p.m. in 24-hour time. (a) 03:15 (b) 15:15 (c) 17:15
35. 35.A train leaves at 17:55 and reaches at 19:50. How long is the journey (in minutes)?
36. 36.A film is 1 hour 20 minutes long. How many minutes is that?
37. 37.Write 9:00 a.m. in 24-hour time. (a) 09:00 (b) 21:00 (c) 11:00
38. 38.A match starts at 06:00 and lasts 1 hour 15 minutes. At what time does it end? (a) 06:15 (b) 08:15 (c) 07:15
39. 39.A film is 4 hours 55 minutes long. How many minutes is that?
40. 40.How many hours are there from 11:00 to 23:00?

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