Class 4 Maths Worksheet: 24-Hour Clock

Maths worksheets lesson 30: The 24-hour clock and time taken · Set 193 · 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 20:15 in 12-hour time? (a) 8:15 a.m. (b) 10:15 p.m. (c) 8:15 p.m.
2. 2.Write 3:45 p.m. in 24-hour time. (a) 17:45 (b) 03:45 (c) 15:45
3. 3.How many hours are there from 10:00 to 23:00?
4. 4.Write 4:45 a.m. in 24-hour time. (a) 16:45 (b) 06:45 (c) 04:45
5. 5.A film is 2 hours 15 minutes long. How many minutes is that?
6. 6.Write 1:30 p.m. in 24-hour time. (a) 13:30 (b) 15:30 (c) 01:30
7. 7.Write 9:35 a.m. in 24-hour time. (a) 21:35 (b) 11:35 (c) 09:35
8. 8.A train leaves at 10:50 and reaches at 11:15. How long is the journey (in minutes)?
9. 9.A film is 1 hour 45 minutes long. How many minutes is that?
10. 10.A film is 3 hours 35 minutes long. How many minutes is that?
11. 11.A train leaves at 16:25 and reaches at 18:50. How long is the journey (in minutes)?
12. 12.A match starts at 08:45 and lasts 1 hour. At what time does it end? (a) 10:45 (b) 09:45 (c) 08:45
13. 13.Write 10:00 p.m. in 24-hour time. (a) 00:00 (b) 10:00 (c) 22:00
14. 14.A train leaves at 11:50 and reaches at 12:30. How long is the journey (in minutes)?
15. 15.What is 05:30 in 12-hour time? (a) 7:30 a.m. (b) 5:30 p.m. (c) 5:30 a.m.
16. 16.Write 2:20 p.m. in 24-hour time. (a) 16:20 (b) 14:20 (c) 02:20
17. 17.What is 01:00 in 12-hour time? (a) 1:00 a.m. (b) 3:00 a.m. (c) 1:00 p.m.
18. 18.A train leaves at 13:55 and reaches at 15:00. How long is the journey (in minutes)?
19. 19.A film is 2 hours 10 minutes long. How many minutes is that?
20. 20.What is 01:20 in 12-hour time? (a) 1:20 p.m. (b) 3:20 a.m. (c) 1:20 a.m.
21. 21.A match starts at 16:05 and lasts 3 hours 5 minutes. At what time does it end? (a) 18:10 (b) 19:10 (c) 20:10
22. 22.How many hours are there from 06:00 to 23:00?
23. 23.What is 20:55 in 12-hour time? (a) 8:55 a.m. (b) 10:55 p.m. (c) 8:55 p.m.
24. 24.What is 06:25 in 12-hour time? (a) 6:25 p.m. (b) 8:25 a.m. (c) 6:25 a.m.
25. 25.A train leaves at 08:15 and reaches at 09:55. How long is the journey (in minutes)?
26. 26.A match starts at 12:10 and lasts 2 hours 50 minutes. At what time does it end? (a) 14:00 (b) 16:00 (c) 15:00
27. 27.Write 8:25 p.m. in 24-hour time. (a) 22:25 (b) 20:25 (c) 08:25
28. 28.What is 23:40 in 12-hour time? (a) 11:40 a.m. (b) 11:40 p.m. (c) 1:40 p.m.
29. 29.What is 16:40 in 12-hour time? (a) 4:40 p.m. (b) 4:40 a.m. (c) 6:40 p.m.
30. 30.How many hours are there from 12:00 to 17:00?
31. 31.What is 07:50 in 12-hour time? (a) 9:50 a.m. (b) 7:50 p.m. (c) 7:50 a.m.
32. 32.How many hours are there from 06:00 to 13:00?
33. 33.A train leaves at 09:10 and reaches at 10:00. How long is the journey (in minutes)?
34. 34.What is 21:40 in 12-hour time? (a) 11:40 p.m. (b) 9:40 p.m. (c) 9:40 a.m.
35. 35.A film is 3 hours 10 minutes long. How many minutes is that?
36. 36.How many hours are there from 11:00 to 15:00?
37. 37.A match starts at 13:35 and lasts 3 hours 50 minutes. At what time does it end? (a) 16:25 (b) 17:25 (c) 18:25
38. 38.How many hours are there from 09:00 to 13:00?
39. 39.What is 23:00 in 12-hour time? (a) 11:00 a.m. (b) 11:00 p.m. (c) 1:00 p.m.
40. 40.Write 3:25 p.m. in 24-hour time. (a) 17:25 (b) 15:25 (c) 03:25

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