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Class 4 Maths Worksheet: 24-Hour Clock

Maths worksheets lesson 30: The 24-hour clock and time taken · Set 186 · 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 07:00 to 15:00?
  2. 2.What is 18:05 in 12-hour time? (a) 6:05 a.m. (b) 8:05 p.m. (c) 6:05 p.m.
  3. 3.What is 02:30 in 12-hour time? (a) 2:30 a.m. (b) 4:30 a.m. (c) 2:30 p.m.
  4. 4.Write 4:50 a.m. in 24-hour time. (a) 04:50 (b) 06:50 (c) 16:50
  5. 5.What is 07:20 in 12-hour time? (a) 7:20 p.m. (b) 9:20 a.m. (c) 7:20 a.m.
  6. 6.What is 02:45 in 12-hour time? (a) 2:45 p.m. (b) 4:45 a.m. (c) 2:45 a.m.
  7. 7.What is 21:35 in 12-hour time? (a) 9:35 p.m. (b) 9:35 a.m. (c) 11:35 p.m.
  8. 8.A train leaves at 16:50 and reaches at 18:35. How long is the journey (in minutes)?
  9. 9.A match starts at 14:25 and lasts 3 hours 50 minutes. At what time does it end? (a) 18:15 (b) 19:15 (c) 17:15
  10. 10.Write 11:30 p.m. in 24-hour time. (a) 11:30 (b) 01:30 (c) 23:30
  11. 11.Write 3:15 a.m. in 24-hour time. (a) 15:15 (b) 05:15 (c) 03:15
  12. 12.Write 6:55 p.m. in 24-hour time. (a) 18:55 (b) 06:55 (c) 20:55
  13. 13.How many hours are there from 10:00 to 16:00?
  14. 14.Write 10:00 a.m. in 24-hour time. (a) 22:00 (b) 12:00 (c) 10:00
  15. 15.Write 5:20 a.m. in 24-hour time. (a) 07:20 (b) 05:20 (c) 17:20
  16. 16.Write 6:45 a.m. in 24-hour time. (a) 18:45 (b) 08:45 (c) 06:45
  17. 17.A train leaves at 10:00 and reaches at 11:10. How long is the journey (in minutes)?
  18. 18.How many hours are there from 05:00 to 13:00?
  19. 19.Write 6:00 a.m. in 24-hour time. (a) 18:00 (b) 08:00 (c) 06:00
  20. 20.Write 1:30 a.m. in 24-hour time. (a) 13:30 (b) 01:30 (c) 03:30
  21. 21.How many hours are there from 09:00 to 16:00?
  22. 22.A film is 1 hour 20 minutes long. How many minutes is that?
  23. 23.A match starts at 09:05 and lasts 4 hours 25 minutes. At what time does it end? (a) 12:30 (b) 14:30 (c) 13:30
  24. 24.Write 1:45 a.m. in 24-hour time. (a) 01:45 (b) 13:45 (c) 03:45
  25. 25.Write 3:05 p.m. in 24-hour time. (a) 15:05 (b) 17:05 (c) 03:05
  26. 26.A match starts at 18:15 and lasts 2 hours 35 minutes. At what time does it end? (a) 19:50 (b) 21:50 (c) 20:50
  27. 27.Write 8:05 p.m. in 24-hour time. (a) 22:05 (b) 08:05 (c) 20:05
  28. 28.How many hours are there from 12:00 to 20:00?
  29. 29.Write 10:35 p.m. in 24-hour time. (a) 00:35 (b) 22:35 (c) 10:35
  30. 30.How many hours are there from 11:00 to 13:00?
  31. 31.Write 7:20 p.m. in 24-hour time. (a) 21:20 (b) 19:20 (c) 07:20
  32. 32.A film is 3 hours 5 minutes long. How many minutes is that?
  33. 33.A match starts at 16:10 and lasts 1 hour 35 minutes. At what time does it end? (a) 16:45 (b) 17:45 (c) 18:45
  34. 34.Write 10:30 p.m. in 24-hour time. (a) 00:30 (b) 10:30 (c) 22:30
  35. 35.Write 4:30 p.m. in 24-hour time. (a) 18:30 (b) 04:30 (c) 16:30
  36. 36.A film is 4 hours 10 minutes long. How many minutes is that?
  37. 37.What is 07:30 in 12-hour time? (a) 9:30 a.m. (b) 7:30 p.m. (c) 7:30 a.m.
  38. 38.Write 6:05 p.m. in 24-hour time. (a) 18:05 (b) 06:05 (c) 20:05
  39. 39.What is 11:00 in 12-hour time? (a) 1:00 a.m. (b) 11:00 p.m. (c) 11:00 a.m.
  40. 40.How many hours are there from 06:00 to 12:00?

Answer key

  1. 8
  2. 6:05 p.m.
  3. 2:30 a.m.
  4. 04:50
  5. 7:20 a.m.
  6. 2:45 a.m.
  7. 9:35 p.m.
  8. 105
  9. 18:15
  10. 23:30
  11. 03:15
  12. 18:55
  13. 6
  14. 10:00
  15. 05:20
  16. 06:45
  17. 70
  18. 8
  19. 06:00
  20. 01:30
  21. 7
  22. 80
  23. 13:30
  24. 01:45
  25. 15:05
  26. 20:50
  27. 20:05
  28. 8
  29. 22:35
  30. 2
  31. 19:20
  32. 185
  33. 17:45
  34. 22:30
  35. 16:30
  36. 250
  37. 7:30 a.m.
  38. 18:05
  39. 11:00 a.m.
  40. 6

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