Class 4 Maths Worksheet: 24-Hour Clock

Maths worksheets lesson 30: The 24-hour clock and time taken · Set 177 · 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 8:20 a.m. in 24-hour time. (a) 08:20 (b) 20:20 (c) 10:20
2. 2.What is 20:00 in 12-hour time? (a) 8:00 a.m. (b) 8:00 p.m. (c) 10:00 p.m.
3. 3.Write 3:00 p.m. in 24-hour time. (a) 03:00 (b) 17:00 (c) 15:00
4. 4.A film is 2 hours 30 minutes long. How many minutes is that?
5. 5.A film is 1 hour 45 minutes long. How many minutes is that?
6. 6.A match starts at 15:20 and lasts 2 hours 45 minutes. At what time does it end? (a) 18:05 (b) 19:05 (c) 17:05
7. 7.What is 08:20 in 12-hour time? (a) 8:20 a.m. (b) 8:20 p.m. (c) 10:20 a.m.
8. 8.How many hours are there from 09:00 to 15:00?
9. 9.Write 10:15 p.m. in 24-hour time. (a) 22:15 (b) 10:15 (c) 00:15
10. 10.How many hours are there from 10:00 to 13:00?
11. 11.A match starts at 18:25 and lasts 1 hour 20 minutes. At what time does it end? (a) 20:45 (b) 18:45 (c) 19:45
12. 12.A train leaves at 14:50 and reaches at 16:45. How long is the journey (in minutes)?
13. 13.A train leaves at 12:20 and reaches at 14:30. How long is the journey (in minutes)?
14. 14.What is 08:55 in 12-hour time? (a) 8:55 p.m. (b) 8:55 a.m. (c) 10:55 a.m.
15. 15.A train leaves at 15:00 and reaches at 17:45. How long is the journey (in minutes)?
16. 16.A match starts at 07:55 and lasts 3 hours 30 minutes. At what time does it end? (a) 12:25 (b) 10:25 (c) 11:25
17. 17.How many hours are there from 12:00 to 23:00?
18. 18.Write 1:50 a.m. in 24-hour time. (a) 01:50 (b) 13:50 (c) 03:50
19. 19.Write 10:50 p.m. in 24-hour time. (a) 10:50 (b) 22:50 (c) 00:50
20. 20.A film is 1 hour 10 minutes long. How many minutes is that?
21. 21.Write 5:45 p.m. in 24-hour time. (a) 19:45 (b) 17:45 (c) 05:45
22. 22.Write 1:00 p.m. in 24-hour time. (a) 01:00 (b) 15:00 (c) 13:00
23. 23.How many hours are there from 05:00 to 09:00?
24. 24.Write 8:25 p.m. in 24-hour time. (a) 22:25 (b) 20:25 (c) 08:25
25. 25.Write 8:45 p.m. in 24-hour time. (a) 22:45 (b) 08:45 (c) 20:45
26. 26.A film is 3 hours 10 minutes long. How many minutes is that?
27. 27.Write 1:05 a.m. in 24-hour time. (a) 03:05 (b) 01:05 (c) 13:05
28. 28.How many hours are there from 10:00 to 22:00?
29. 29.Write 3:50 p.m. in 24-hour time. (a) 15:50 (b) 03:50 (c) 17:50
30. 30.A train leaves at 17:55 and reaches at 18:25. How long is the journey (in minutes)?
31. 31.A film is 1 hour 30 minutes long. How many minutes is that?
32. 32.What is 14:00 in 12-hour time? (a) 2:00 p.m. (b) 2:00 a.m. (c) 4:00 p.m.
33. 33.How many hours are there from 07:00 to 21:00?
34. 34.A match starts at 10:45 and lasts 3 hours 35 minutes. At what time does it end? (a) 13:20 (b) 15:20 (c) 14:20
35. 35.A film is 2 hours 45 minutes long. How many minutes is that?
36. 36.What is 11:40 in 12-hour time? (a) 11:40 a.m. (b) 11:40 p.m. (c) 1:40 a.m.
37. 37.A train leaves at 16:55 and reaches at 18:10. How long is the journey (in minutes)?
38. 38.What is 10:55 in 12-hour time? (a) 12:55 a.m. (b) 10:55 p.m. (c) 10:55 a.m.
39. 39.What is 03:30 in 12-hour time? (a) 5:30 a.m. (b) 3:30 a.m. (c) 3:30 p.m.
40. 40.A train leaves at 07:05 and reaches at 08:10. How long is the journey (in minutes)?

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