Class 4 Maths Worksheet: 24-Hour Clock

Maths worksheets lesson 30: The 24-hour clock and time taken · Set 217 · 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 6:10 a.m. in 24-hour time. (a) 06:10 (b) 18:10 (c) 08:10
2. 2.Write 7:00 p.m. in 24-hour time. (a) 21:00 (b) 07:00 (c) 19:00
3. 3.Write 9:45 p.m. in 24-hour time. (a) 21:45 (b) 09:45 (c) 23:45
4. 4.What is 01:50 in 12-hour time? (a) 3:50 a.m. (b) 1:50 a.m. (c) 1:50 p.m.
5. 5.Write 1:35 a.m. in 24-hour time. (a) 01:35 (b) 13:35 (c) 03:35
6. 6.A match starts at 17:25 and lasts 1 hour. At what time does it end? (a) 18:25 (b) 19:25 (c) 17:25
7. 7.What is 08:00 in 12-hour time? (a) 8:00 p.m. (b) 10:00 a.m. (c) 8:00 a.m.
8. 8.Write 9:40 p.m. in 24-hour time. (a) 09:40 (b) 23:40 (c) 21:40
9. 9.A match starts at 09:55 and lasts 1 hour 15 minutes. At what time does it end? (a) 10:10 (b) 12:10 (c) 11:10
10. 10.What is 06:50 in 12-hour time? (a) 8:50 a.m. (b) 6:50 p.m. (c) 6:50 a.m.
11. 11.How many hours are there from 12:00 to 21:00?
12. 12.A train leaves at 08:30 and reaches at 11:00. How long is the journey (in minutes)?
13. 13.What is 02:50 in 12-hour time? (a) 4:50 a.m. (b) 2:50 p.m. (c) 2:50 a.m.
14. 14.Write 5:40 a.m. in 24-hour time. (a) 17:40 (b) 07:40 (c) 05:40
15. 15.A match starts at 07:45 and lasts 3 hours 15 minutes. At what time does it end? (a) 10:00 (b) 12:00 (c) 11:00
16. 16.A train leaves at 18:00 and reaches at 18:30. How long is the journey (in minutes)?
17. 17.A match starts at 17:50 and lasts 3 hours 40 minutes. At what time does it end? (a) 22:30 (b) 21:30 (c) 20:30
18. 18.What is 01:05 in 12-hour time? (a) 1:05 a.m. (b) 3:05 a.m. (c) 1:05 p.m.
19. 19.What is 02:45 in 12-hour time? (a) 2:45 p.m. (b) 2:45 a.m. (c) 4:45 a.m.
20. 20.A train leaves at 08:10 and reaches at 09:25. How long is the journey (in minutes)?
21. 21.A match starts at 08:00 and lasts 3 hours 25 minutes. At what time does it end? (a) 10:25 (b) 11:25 (c) 12:25
22. 22.How many hours are there from 11:00 to 22:00?
23. 23.What is 20:05 in 12-hour time? (a) 8:05 p.m. (b) 8:05 a.m. (c) 10:05 p.m.
24. 24.A match starts at 13:55 and lasts 3 hours. At what time does it end? (a) 16:55 (b) 17:55 (c) 15:55
25. 25.A film is 4 hours 45 minutes long. How many minutes is that?
26. 26.Write 7:55 a.m. in 24-hour time. (a) 07:55 (b) 09:55 (c) 19:55
27. 27.Write 5:10 a.m. in 24-hour time. (a) 07:10 (b) 17:10 (c) 05:10
28. 28.How many hours are there from 05:00 to 07:00?
29. 29.What is 22:35 in 12-hour time? (a) 10:35 a.m. (b) 12:35 p.m. (c) 10:35 p.m.
30. 30.Write 1:45 p.m. in 24-hour time. (a) 01:45 (b) 15:45 (c) 13:45
31. 31.What is 20:55 in 12-hour time? (a) 8:55 p.m. (b) 10:55 p.m. (c) 8:55 a.m.
32. 32.Write 10:45 p.m. in 24-hour time. (a) 10:45 (b) 22:45 (c) 00:45
33. 33.A match starts at 11:10 and lasts 4 hours 25 minutes. At what time does it end? (a) 14:35 (b) 16:35 (c) 15:35
34. 34.Write 6:35 p.m. in 24-hour time. (a) 18:35 (b) 20:35 (c) 06:35
35. 35.Write 9:10 p.m. in 24-hour time. (a) 21:10 (b) 09:10 (c) 23:10
36. 36.A train leaves at 16:25 and reaches at 16:55. How long is the journey (in minutes)?
37. 37.How many hours are there from 11:00 to 23:00?
38. 38.A match starts at 09:25 and lasts 1 hour 10 minutes. At what time does it end? (a) 09:35 (b) 10:35 (c) 11:35
39. 39.What is 17:55 in 12-hour time? (a) 5:55 p.m. (b) 7:55 p.m. (c) 5:55 a.m.
40. 40.Write 11:05 p.m. in 24-hour time. (a) 11:05 (b) 01:05 (c) 23:05

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