Class 4 Maths Worksheet: 24-Hour Clock

Maths worksheets lesson 30: The 24-hour clock and time taken · Set 981 · 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 10:50 a.m. in 24-hour time. (a) 22:50 (b) 12:50 (c) 10:50
2. 2.A train leaves at 07:15 and reaches at 09:50. How long is the journey (in minutes)?
3. 3.A train leaves at 16:20 and reaches at 16:55. How long is the journey (in minutes)?
4. 4.What is 18:25 in 12-hour time? (a) 6:25 p.m. (b) 8:25 p.m. (c) 6:25 a.m.
5. 5.A train leaves at 06:35 and reaches at 09:15. How long is the journey (in minutes)?
6. 6.A film is 1 hour 5 minutes long. How many minutes is that?
7. 7.A train leaves at 11:45 and reaches at 13:15. How long is the journey (in minutes)?
8. 8.What is 23:45 in 12-hour time? (a) 11:45 a.m. (b) 11:45 p.m. (c) 1:45 p.m.
9. 9.What is 14:00 in 12-hour time? (a) 4:00 p.m. (b) 2:00 p.m. (c) 2:00 a.m.
10. 10.Write 6:50 p.m. in 24-hour time. (a) 20:50 (b) 06:50 (c) 18:50
11. 11.A film is 1 hour 50 minutes long. How many minutes is that?
12. 12.A train leaves at 17:15 and reaches at 18:55. How long is the journey (in minutes)?
13. 13.How many hours are there from 07:00 to 20:00?
14. 14.What is 07:35 in 12-hour time? (a) 7:35 a.m. (b) 7:35 p.m. (c) 9:35 a.m.
15. 15.How many hours are there from 06:00 to 11:00?
16. 16.How many hours are there from 12:00 to 17:00?
17. 17.How many hours are there from 09:00 to 15:00?
18. 18.A match starts at 18:15 and lasts 4 hours 5 minutes. At what time does it end? (a) 21:20 (b) 22:20 (c) 23:20
19. 19.A match starts at 08:20 and lasts 1 hour 15 minutes. At what time does it end? (a) 08:35 (b) 09:35 (c) 10:35
20. 20.A match starts at 10:20 and lasts 4 hours. At what time does it end? (a) 14:20 (b) 15:20 (c) 13:20
21. 21.What is 07:05 in 12-hour time? (a) 9:05 a.m. (b) 7:05 p.m. (c) 7:05 a.m.
22. 22.What is 01:05 in 12-hour time? (a) 1:05 p.m. (b) 3:05 a.m. (c) 1:05 a.m.
23. 23.Write 11:05 p.m. in 24-hour time. (a) 23:05 (b) 01:05 (c) 11:05
24. 24.Write 10:55 a.m. in 24-hour time. (a) 12:55 (b) 10:55 (c) 22:55
25. 25.A match starts at 18:50 and lasts 1 hour 10 minutes. At what time does it end? (a) 21:00 (b) 19:00 (c) 20:00
26. 26.Write 3:55 a.m. in 24-hour time. (a) 03:55 (b) 05:55 (c) 15:55
27. 27.What is 17:10 in 12-hour time? (a) 7:10 p.m. (b) 5:10 p.m. (c) 5:10 a.m.
28. 28.How many hours are there from 05:00 to 18:00?
29. 29.What is 21:50 in 12-hour time? (a) 11:50 p.m. (b) 9:50 p.m. (c) 9:50 a.m.
30. 30.Write 10:15 p.m. in 24-hour time. (a) 22:15 (b) 00:15 (c) 10:15
31. 31.A film is 1 hour 25 minutes long. How many minutes is that?
32. 32.Write 9:55 a.m. in 24-hour time. (a) 21:55 (b) 09:55 (c) 11:55
33. 33.A train leaves at 10:35 and reaches at 13:00. How long is the journey (in minutes)?
34. 34.A train leaves at 09:00 and reaches at 10:55. How long is the journey (in minutes)?
35. 35.A film is 2 hours 30 minutes long. How many minutes is that?
36. 36.A film is 4 hours 15 minutes long. How many minutes is that?
37. 37.A train leaves at 12:15 and reaches at 15:05. How long is the journey (in minutes)?
38. 38.A match starts at 16:15 and lasts 1 hour 25 minutes. At what time does it end? (a) 17:40 (b) 18:40 (c) 16:40
39. 39.What is 19:20 in 12-hour time? (a) 7:20 p.m. (b) 9:20 p.m. (c) 7:20 a.m.
40. 40.A match starts at 16:10 and lasts 3 hours 45 minutes. At what time does it end? (a) 18:55 (b) 19:55 (c) 20:55

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