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Class 4 Maths Worksheet: 24-Hour Clock

Maths worksheets lesson 30: The 24-hour clock and time taken · Set 978 · 40 sums
TalentJR

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.

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

Answer key

  1. 20:30
  2. 2
  3. 3
  4. 155
  5. 1:00 p.m.
  6. 1:35 a.m.
  7. 16
  8. 03:30
  9. 16
  10. 8
  11. 16:30
  12. 10:15 p.m.
  13. 13:20
  14. 13
  15. 5:10 p.m.
  16. 10:40
  17. 09:45
  18. 7:25 a.m.
  19. 6:15 a.m.
  20. 5:50 a.m.
  21. 110
  22. 65
  23. 6
  24. 1:45 p.m.
  25. 45
  26. 5
  27. 4:00 a.m.
  28. 11:55
  29. 2:50 p.m.
  30. 14:25
  31. 12
  32. 9:00 a.m.
  33. 9:05 p.m.
  34. 6:05 a.m.
  35. 13:45
  36. 16:55
  37. 23:05
  38. 2:35 a.m.
  39. 60
  40. 8:35 p.m.

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