Class 4 Maths Worksheet: 24-Hour Clock

Maths worksheets lesson 30: The 24-hour clock and time taken · Set 344 · 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 1:15 p.m. in 24-hour time. (a) 15:15 (b) 13:15 (c) 01:15
2. 2.What is 15:00 in 12-hour time? (a) 5:00 p.m. (b) 3:00 p.m. (c) 3:00 a.m.
3. 3.How many hours are there from 05:00 to 19:00?
4. 4.What is 02:20 in 12-hour time? (a) 2:20 a.m. (b) 4:20 a.m. (c) 2:20 p.m.
5. 5.A film is 2 hours 45 minutes long. How many minutes is that?
6. 6.How many hours are there from 11:00 to 17:00?
7. 7.How many hours are there from 07:00 to 21:00?
8. 8.Write 3:10 a.m. in 24-hour time. (a) 03:10 (b) 05:10 (c) 15:10
9. 9.A train leaves at 07:50 and reaches at 08:15. How long is the journey (in minutes)?
10. 10.How many hours are there from 06:00 to 09:00?
11. 11.A train leaves at 14:00 and reaches at 17:10. How long is the journey (in minutes)?
12. 12.What is 01:05 in 12-hour time? (a) 3:05 a.m. (b) 1:05 p.m. (c) 1:05 a.m.
13. 13.A match starts at 10:45 and lasts 2 hours 50 minutes. At what time does it end? (a) 14:35 (b) 12:35 (c) 13:35
14. 14.What is 16:10 in 12-hour time? (a) 6:10 p.m. (b) 4:10 p.m. (c) 4:10 a.m.
15. 15.Write 7:10 a.m. in 24-hour time. (a) 09:10 (b) 07:10 (c) 19:10
16. 16.What is 11:50 in 12-hour time? (a) 1:50 a.m. (b) 11:50 a.m. (c) 11:50 p.m.
17. 17.Write 2:45 p.m. in 24-hour time. (a) 02:45 (b) 14:45 (c) 16:45
18. 18.A film is 4 hours 35 minutes long. How many minutes is that?
19. 19.A film is 1 hour 20 minutes long. How many minutes is that?
20. 20.Write 1:10 p.m. in 24-hour time. (a) 15:10 (b) 01:10 (c) 13:10
21. 21.A match starts at 06:20 and lasts 1 hour 40 minutes. At what time does it end? (a) 09:00 (b) 07:00 (c) 08:00
22. 22.What is 03:05 in 12-hour time? (a) 5:05 a.m. (b) 3:05 a.m. (c) 3:05 p.m.
23. 23.A match starts at 12:35 and lasts 2 hours 45 minutes. At what time does it end? (a) 16:20 (b) 14:20 (c) 15:20
24. 24.What is 08:30 in 12-hour time? (a) 10:30 a.m. (b) 8:30 a.m. (c) 8:30 p.m.
25. 25.A train leaves at 16:40 and reaches at 19:40. How long is the journey (in minutes)?
26. 26.How many hours are there from 11:00 to 20:00?
27. 27.Write 5:30 a.m. in 24-hour time. (a) 07:30 (b) 17:30 (c) 05:30
28. 28.A film is 3 hours 25 minutes long. How many minutes is that?
29. 29.A train leaves at 06:15 and reaches at 06:50. How long is the journey (in minutes)?
30. 30.Write 1:00 p.m. in 24-hour time. (a) 15:00 (b) 01:00 (c) 13:00
31. 31.How many hours are there from 11:00 to 19:00?
32. 32.What is 10:40 in 12-hour time? (a) 12:40 a.m. (b) 10:40 a.m. (c) 10:40 p.m.
33. 33.A train leaves at 10:20 and reaches at 13:00. How long is the journey (in minutes)?
34. 34.Write 11:35 a.m. in 24-hour time. (a) 13:35 (b) 11:35 (c) 23:35
35. 35.What is 01:40 in 12-hour time? (a) 3:40 a.m. (b) 1:40 a.m. (c) 1:40 p.m.
36. 36.A train leaves at 11:50 and reaches at 14:35. How long is the journey (in minutes)?
37. 37.What is 08:10 in 12-hour time? (a) 8:10 a.m. (b) 10:10 a.m. (c) 8:10 p.m.
38. 38.A train leaves at 16:50 and reaches at 18:25. How long is the journey (in minutes)?
39. 39.A train leaves at 16:15 and reaches at 19:10. How long is the journey (in minutes)?
40. 40.A match starts at 18:55 and lasts 2 hours 20 minutes. At what time does it end? (a) 22:15 (b) 21:15 (c) 20:15

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