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Class 4 Maths Worksheet: 24-Hour Clock

Maths worksheets lesson 30: The 24-hour clock and time taken · Set 833 · 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.How many hours are there from 10:00 to 20:00?
  2. 2.What is 02:25 in 12-hour time? (a) 2:25 a.m. (b) 4:25 a.m. (c) 2:25 p.m.
  3. 3.A train leaves at 11:05 and reaches at 13:00. How long is the journey (in minutes)?
  4. 4.How many hours are there from 10:00 to 15:00?
  5. 5.How many hours are there from 10:00 to 12:00?
  6. 6.How many hours are there from 07:00 to 10:00?
  7. 7.Write 9:55 p.m. in 24-hour time. (a) 09:55 (b) 21:55 (c) 23:55
  8. 8.What is 14:00 in 12-hour time? (a) 2:00 p.m. (b) 2:00 a.m. (c) 4:00 p.m.
  9. 9.What is 05:00 in 12-hour time? (a) 5:00 p.m. (b) 5:00 a.m. (c) 7:00 a.m.
  10. 10.What is 20:30 in 12-hour time? (a) 10:30 p.m. (b) 8:30 p.m. (c) 8:30 a.m.
  11. 11.How many hours are there from 11:00 to 13:00?
  12. 12.How many hours are there from 10:00 to 22:00?
  13. 13.What is 06:35 in 12-hour time? (a) 8:35 a.m. (b) 6:35 a.m. (c) 6:35 p.m.
  14. 14.What is 21:55 in 12-hour time? (a) 11:55 p.m. (b) 9:55 a.m. (c) 9:55 p.m.
  15. 15.A train leaves at 17:30 and reaches at 18:20. How long is the journey (in minutes)?
  16. 16.A train leaves at 06:25 and reaches at 08:05. How long is the journey (in minutes)?
  17. 17.What is 03:55 in 12-hour time? (a) 3:55 p.m. (b) 5:55 a.m. (c) 3:55 a.m.
  18. 18.Write 7:40 p.m. in 24-hour time. (a) 07:40 (b) 19:40 (c) 21:40
  19. 19.What is 16:35 in 12-hour time? (a) 4:35 p.m. (b) 6:35 p.m. (c) 4:35 a.m.
  20. 20.A film is 2 hours 15 minutes long. How many minutes is that?
  21. 21.What is 20:10 in 12-hour time? (a) 8:10 p.m. (b) 8:10 a.m. (c) 10:10 p.m.
  22. 22.What is 18:20 in 12-hour time? (a) 6:20 p.m. (b) 8:20 p.m. (c) 6:20 a.m.
  23. 23.Write 3:05 a.m. in 24-hour time. (a) 15:05 (b) 03:05 (c) 05:05
  24. 24.What is 09:45 in 12-hour time? (a) 9:45 p.m. (b) 11:45 a.m. (c) 9:45 a.m.
  25. 25.A film is 4 hours 10 minutes long. How many minutes is that?
  26. 26.Write 8:00 p.m. in 24-hour time. (a) 08:00 (b) 20:00 (c) 22:00
  27. 27.What is 21:00 in 12-hour time? (a) 11:00 p.m. (b) 9:00 a.m. (c) 9:00 p.m.
  28. 28.A film is 1 hour 55 minutes long. How many minutes is that?
  29. 29.Write 10:25 a.m. in 24-hour time. (a) 22:25 (b) 12:25 (c) 10:25
  30. 30.A film is 1 hour 10 minutes long. How many minutes is that?
  31. 31.What is 15:15 in 12-hour time? (a) 3:15 a.m. (b) 5:15 p.m. (c) 3:15 p.m.
  32. 32.A film is 4 hours 45 minutes long. How many minutes is that?
  33. 33.Write 8:05 p.m. in 24-hour time. (a) 22:05 (b) 08:05 (c) 20:05
  34. 34.Write 8:35 a.m. in 24-hour time. (a) 10:35 (b) 20:35 (c) 08:35
  35. 35.A film is 3 hours 55 minutes long. How many minutes is that?
  36. 36.A train leaves at 16:20 and reaches at 19:30. How long is the journey (in minutes)?
  37. 37.A film is 2 hours 10 minutes long. How many minutes is that?
  38. 38.A film is 3 hours 10 minutes long. How many minutes is that?
  39. 39.How many hours are there from 12:00 to 16:00?
  40. 40.A film is 1 hour 35 minutes long. How many minutes is that?

Answer key

  1. 10
  2. 2:25 a.m.
  3. 115
  4. 5
  5. 2
  6. 3
  7. 21:55
  8. 2:00 p.m.
  9. 5:00 a.m.
  10. 8:30 p.m.
  11. 2
  12. 12
  13. 6:35 a.m.
  14. 9:55 p.m.
  15. 50
  16. 100
  17. 3:55 a.m.
  18. 19:40
  19. 4:35 p.m.
  20. 135
  21. 8:10 p.m.
  22. 6:20 p.m.
  23. 03:05
  24. 9:45 a.m.
  25. 250
  26. 20:00
  27. 9:00 p.m.
  28. 115
  29. 10:25
  30. 70
  31. 3:15 p.m.
  32. 285
  33. 20:05
  34. 08:35
  35. 235
  36. 190
  37. 130
  38. 190
  39. 4
  40. 95

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