Class 4 Maths Worksheet: 24-Hour Clock

Maths worksheets lesson 30: The 24-hour clock and time taken · Set 161 · 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 11:55 in 12-hour time? (a) 11:55 a.m. (b) 1:55 a.m. (c) 11:55 p.m.
2. 2.A film is 1 hour 30 minutes long. How many minutes is that?
3. 3.A match starts at 18:05 and lasts 2 hours 45 minutes. At what time does it end? (a) 21:50 (b) 20:50 (c) 19:50
4. 4.What is 19:55 in 12-hour time? (a) 7:55 a.m. (b) 7:55 p.m. (c) 9:55 p.m.
5. 5.Write 4:50 p.m. in 24-hour time. (a) 16:50 (b) 18:50 (c) 04:50
6. 6.What is 01:05 in 12-hour time? (a) 1:05 a.m. (b) 3:05 a.m. (c) 1:05 p.m.
7. 7.What is 07:20 in 12-hour time? (a) 7:20 a.m. (b) 7:20 p.m. (c) 9:20 a.m.
8. 8.What is 15:00 in 12-hour time? (a) 3:00 p.m. (b) 3:00 a.m. (c) 5:00 p.m.
9. 9.A match starts at 10:50 and lasts 2 hours 45 minutes. At what time does it end? (a) 12:35 (b) 14:35 (c) 13:35
10. 10.A train leaves at 17:15 and reaches at 17:50. How long is the journey (in minutes)?
11. 11.A match starts at 06:10 and lasts 3 hours 50 minutes. At what time does it end? (a) 09:00 (b) 10:00 (c) 11:00
12. 12.What is 10:50 in 12-hour time? (a) 10:50 a.m. (b) 12:50 a.m. (c) 10:50 p.m.
13. 13.A match starts at 10:40 and lasts 1 hour 15 minutes. At what time does it end? (a) 12:55 (b) 10:55 (c) 11:55
14. 14.Write 1:35 p.m. in 24-hour time. (a) 13:35 (b) 01:35 (c) 15:35
15. 15.How many hours are there from 11:00 to 18:00?
16. 16.Write 11:40 a.m. in 24-hour time. (a) 23:40 (b) 13:40 (c) 11:40
17. 17.A match starts at 17:05 and lasts 3 hours 45 minutes. At what time does it end? (a) 19:50 (b) 20:50 (c) 21:50
18. 18.A match starts at 15:05 and lasts 4 hours 25 minutes. At what time does it end? (a) 18:30 (b) 20:30 (c) 19:30
19. 19.A train leaves at 17:30 and reaches at 20:50. How long is the journey (in minutes)?
20. 20.A film is 3 hours 20 minutes long. How many minutes is that?
21. 21.A film is 4 hours 20 minutes long. How many minutes is that?
22. 22.Write 6:35 p.m. in 24-hour time. (a) 20:35 (b) 06:35 (c) 18:35
23. 23.A train leaves at 11:35 and reaches at 12:05. How long is the journey (in minutes)?
24. 24.A film is 3 hours 35 minutes long. How many minutes is that?
25. 25.A train leaves at 10:35 and reaches at 11:40. How long is the journey (in minutes)?
26. 26.How many hours are there from 08:00 to 18:00?
27. 27.How many hours are there from 10:00 to 13:00?
28. 28.Write 7:05 p.m. in 24-hour time. (a) 19:05 (b) 21:05 (c) 07:05
29. 29.A train leaves at 08:35 and reaches at 09:55. How long is the journey (in minutes)?
30. 30.A train leaves at 17:05 and reaches at 18:10. How long is the journey (in minutes)?
31. 31.Write 1:45 p.m. in 24-hour time. (a) 01:45 (b) 15:45 (c) 13:45
32. 32.A film is 1 hour 50 minutes long. How many minutes is that?
33. 33.What is 20:25 in 12-hour time? (a) 10:25 p.m. (b) 8:25 a.m. (c) 8:25 p.m.
34. 34.Write 2:50 a.m. in 24-hour time. (a) 02:50 (b) 04:50 (c) 14:50
35. 35.Write 4:35 a.m. in 24-hour time. (a) 16:35 (b) 04:35 (c) 06:35
36. 36.A match starts at 09:10 and lasts 2 hours. At what time does it end? (a) 10:10 (b) 11:10 (c) 12:10
37. 37.What is 01:55 in 12-hour time? (a) 1:55 p.m. (b) 1:55 a.m. (c) 3:55 a.m.
38. 38.Write 2:10 p.m. in 24-hour time. (a) 14:10 (b) 16:10 (c) 02:10
39. 39.A film is 2 hours 5 minutes long. How many minutes is that?
40. 40.What is 05:05 in 12-hour time? (a) 5:05 a.m. (b) 5:05 p.m. (c) 7:05 a.m.

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