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Class 4 Maths Worksheet: 24-Hour Clock

Maths worksheets lesson 30: The 24-hour clock and time taken · Set 697 · 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 8:55 a.m. in 24-hour time. (a) 20:55 (b) 10:55 (c) 08:55
  2. 2.A match starts at 07:30 and lasts 3 hours. At what time does it end? (a) 10:30 (b) 09:30 (c) 11:30
  3. 3.Write 1:10 a.m. in 24-hour time. (a) 13:10 (b) 03:10 (c) 01:10
  4. 4.A match starts at 07:10 and lasts 4 hours. At what time does it end? (a) 10:10 (b) 11:10 (c) 12:10
  5. 5.A match starts at 17:10 and lasts 4 hours 35 minutes. At what time does it end? (a) 20:45 (b) 21:45 (c) 22:45
  6. 6.What is 09:30 in 12-hour time? (a) 9:30 a.m. (b) 9:30 p.m. (c) 11:30 a.m.
  7. 7.Write 8:35 a.m. in 24-hour time. (a) 08:35 (b) 20:35 (c) 10:35
  8. 8.What is 03:55 in 12-hour time? (a) 3:55 p.m. (b) 5:55 a.m. (c) 3:55 a.m.
  9. 9.A match starts at 11:05 and lasts 2 hours 45 minutes. At what time does it end? (a) 12:50 (b) 14:50 (c) 13:50
  10. 10.A film is 1 hour 5 minutes long. How many minutes is that?
  11. 11.How many hours are there from 12:00 to 15:00?
  12. 12.How many hours are there from 05:00 to 19:00?
  13. 13.Write 9:10 a.m. in 24-hour time. (a) 21:10 (b) 11:10 (c) 09:10
  14. 14.What is 02:35 in 12-hour time? (a) 2:35 p.m. (b) 4:35 a.m. (c) 2:35 a.m.
  15. 15.A match starts at 10:55 and lasts 3 hours 55 minutes. At what time does it end? (a) 14:50 (b) 15:50 (c) 13:50
  16. 16.Write 10:45 a.m. in 24-hour time. (a) 10:45 (b) 22:45 (c) 12:45
  17. 17.How many hours are there from 05:00 to 07:00?
  18. 18.Write 10:55 a.m. in 24-hour time. (a) 10:55 (b) 12:55 (c) 22:55
  19. 19.How many hours are there from 06:00 to 13:00?
  20. 20.What is 11:15 in 12-hour time? (a) 11:15 p.m. (b) 11:15 a.m. (c) 1:15 a.m.
  21. 21.What is 02:20 in 12-hour time? (a) 4:20 a.m. (b) 2:20 p.m. (c) 2:20 a.m.
  22. 22.How many hours are there from 05:00 to 22:00?
  23. 23.What is 04:35 in 12-hour time? (a) 4:35 p.m. (b) 6:35 a.m. (c) 4:35 a.m.
  24. 24.What is 23:05 in 12-hour time? (a) 11:05 a.m. (b) 1:05 p.m. (c) 11:05 p.m.
  25. 25.A film is 4 hours 15 minutes long. How many minutes is that?
  26. 26.A film is 3 hours 25 minutes long. How many minutes is that?
  27. 27.A film is 4 hours 40 minutes long. How many minutes is that?
  28. 28.What is 05:50 in 12-hour time? (a) 7:50 a.m. (b) 5:50 p.m. (c) 5:50 a.m.
  29. 29.What is 22:20 in 12-hour time? (a) 10:20 a.m. (b) 12:20 p.m. (c) 10:20 p.m.
  30. 30.How many hours are there from 05:00 to 10:00?
  31. 31.How many hours are there from 07:00 to 13:00?
  32. 32.How many hours are there from 11:00 to 20:00?
  33. 33.A match starts at 07:40 and lasts 1 hour 40 minutes. At what time does it end? (a) 08:20 (b) 10:20 (c) 09:20
  34. 34.How many hours are there from 06:00 to 23:00?
  35. 35.Write 6:15 a.m. in 24-hour time. (a) 06:15 (b) 18:15 (c) 08:15
  36. 36.A match starts at 08:05 and lasts 1 hour 30 minutes. At what time does it end? (a) 08:35 (b) 10:35 (c) 09:35
  37. 37.A match starts at 13:45 and lasts 1 hour 5 minutes. At what time does it end? (a) 14:50 (b) 13:50 (c) 15:50
  38. 38.A match starts at 06:55 and lasts 3 hours 5 minutes. At what time does it end? (a) 10:00 (b) 09:00 (c) 11:00
  39. 39.A match starts at 06:15 and lasts 3 hours 25 minutes. At what time does it end? (a) 09:40 (b) 10:40 (c) 08:40
  40. 40.Write 3:15 a.m. in 24-hour time. (a) 15:15 (b) 05:15 (c) 03:15

Answer key

  1. 08:55
  2. 10:30
  3. 01:10
  4. 11:10
  5. 21:45
  6. 9:30 a.m.
  7. 08:35
  8. 3:55 a.m.
  9. 13:50
  10. 65
  11. 3
  12. 14
  13. 09:10
  14. 2:35 a.m.
  15. 14:50
  16. 10:45
  17. 2
  18. 10:55
  19. 7
  20. 11:15 a.m.
  21. 2:20 a.m.
  22. 17
  23. 4:35 a.m.
  24. 11:05 p.m.
  25. 255
  26. 205
  27. 280
  28. 5:50 a.m.
  29. 10:20 p.m.
  30. 5
  31. 6
  32. 9
  33. 09:20
  34. 17
  35. 06:15
  36. 09:35
  37. 14:50
  38. 10:00
  39. 09:40
  40. 03:15

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