Class 4 Maths Worksheet: 24-Hour Clock

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

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