Class 4 Maths Worksheet: 24-Hour Clock

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

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