Class 4 Maths Worksheet: 24-Hour Clock

Maths worksheets lesson 30: The 24-hour clock and time taken · Set 760 · 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 06:30 in 12-hour time? (a) 6:30 p.m. (b) 6:30 a.m. (c) 8:30 a.m.
2. 2.Write 2:50 a.m. in 24-hour time. (a) 14:50 (b) 04:50 (c) 02:50
3. 3.How many hours are there from 07:00 to 21:00?
4. 4.What is 22:50 in 12-hour time? (a) 10:50 a.m. (b) 12:50 p.m. (c) 10:50 p.m.
5. 5.Write 9:00 p.m. in 24-hour time. (a) 21:00 (b) 23:00 (c) 09:00
6. 6.Write 9:10 a.m. in 24-hour time. (a) 09:10 (b) 21:10 (c) 11:10
7. 7.Write 11:50 a.m. in 24-hour time. (a) 13:50 (b) 11:50 (c) 23:50
8. 8.A match starts at 11:15 and lasts 2 hours. At what time does it end? (a) 14:15 (b) 13:15 (c) 12:15
9. 9.Write 9:35 a.m. in 24-hour time. (a) 11:35 (b) 21:35 (c) 09:35
10. 10.What is 01:45 in 12-hour time? (a) 3:45 a.m. (b) 1:45 a.m. (c) 1:45 p.m.
11. 11.A match starts at 13:35 and lasts 1 hour 5 minutes. At what time does it end? (a) 14:40 (b) 15:40 (c) 13:40
12. 12.What is 15:10 in 12-hour time? (a) 3:10 p.m. (b) 3:10 a.m. (c) 5:10 p.m.
13. 13.A film is 4 hours 35 minutes long. How many minutes is that?
14. 14.A match starts at 18:20 and lasts 4 hours 5 minutes. At what time does it end? (a) 22:25 (b) 23:25 (c) 21:25
15. 15.Write 3:40 p.m. in 24-hour time. (a) 03:40 (b) 15:40 (c) 17:40
16. 16.What is 13:15 in 12-hour time? (a) 1:15 p.m. (b) 3:15 p.m. (c) 1:15 a.m.
17. 17.What is 03:00 in 12-hour time? (a) 3:00 a.m. (b) 3:00 p.m. (c) 5:00 a.m.
18. 18.How many hours are there from 05:00 to 12:00?
19. 19.How many hours are there from 06:00 to 15:00?
20. 20.Write 8:00 p.m. in 24-hour time. (a) 20:00 (b) 22:00 (c) 08:00
21. 21.What is 01:50 in 12-hour time? (a) 1:50 p.m. (b) 3:50 a.m. (c) 1:50 a.m.
22. 22.A train leaves at 18:00 and reaches at 18:40. How long is the journey (in minutes)?
23. 23.Write 5:00 p.m. in 24-hour time. (a) 19:00 (b) 17:00 (c) 05:00
24. 24.What is 05:00 in 12-hour time? (a) 5:00 p.m. (b) 7:00 a.m. (c) 5:00 a.m.
25. 25.A match starts at 18:50 and lasts 1 hour 30 minutes. At what time does it end? (a) 19:20 (b) 21:20 (c) 20:20
26. 26.A match starts at 10:50 and lasts 1 hour 55 minutes. At what time does it end? (a) 11:45 (b) 12:45 (c) 13:45
27. 27.A train leaves at 06:30 and reaches at 09:05. How long is the journey (in minutes)?
28. 28.A film is 2 hours 50 minutes long. How many minutes is that?
29. 29.A film is 1 hour 35 minutes long. How many minutes is that?
30. 30.Write 10:00 p.m. in 24-hour time. (a) 22:00 (b) 00:00 (c) 10:00
31. 31.What is 01:20 in 12-hour time? (a) 1:20 p.m. (b) 1:20 a.m. (c) 3:20 a.m.
32. 32.A match starts at 14:20 and lasts 1 hour 10 minutes. At what time does it end? (a) 15:30 (b) 14:30 (c) 16:30
33. 33.A train leaves at 08:25 and reaches at 10:05. How long is the journey (in minutes)?
34. 34.Write 6:35 a.m. in 24-hour time. (a) 08:35 (b) 18:35 (c) 06:35
35. 35.What is 01:40 in 12-hour time? (a) 3:40 a.m. (b) 1:40 a.m. (c) 1:40 p.m.
36. 36.What is 03:10 in 12-hour time? (a) 5:10 a.m. (b) 3:10 p.m. (c) 3:10 a.m.
37. 37.Write 8:20 p.m. in 24-hour time. (a) 22:20 (b) 08:20 (c) 20:20
38. 38.A match starts at 08:05 and lasts 2 hours 30 minutes. At what time does it end? (a) 10:35 (b) 11:35 (c) 09:35
39. 39.Write 7:15 p.m. in 24-hour time. (a) 21:15 (b) 19:15 (c) 07:15
40. 40.A match starts at 17:20 and lasts 4 hours 30 minutes. At what time does it end? (a) 22:50 (b) 21:50 (c) 20:50

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