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Class 4 Maths Worksheet: 24-Hour Clock

Maths worksheets lesson 30: The 24-hour clock and time taken · Set 463 · 40 sums
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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.A film is 4 hours 15 minutes long. How many minutes is that?
  2. 2.Write 11:00 p.m. in 24-hour time. (a) 23:00 (b) 11:00 (c) 01:00
  3. 3.A train leaves at 13:05 and reaches at 16:05. How long is the journey (in minutes)?
  4. 4.A film is 1 hour 10 minutes long. How many minutes is that?
  5. 5.What is 13:30 in 12-hour time? (a) 1:30 p.m. (b) 3:30 p.m. (c) 1:30 a.m.
  6. 6.What is 07:55 in 12-hour time? (a) 7:55 p.m. (b) 9:55 a.m. (c) 7:55 a.m.
  7. 7.A train leaves at 11:35 and reaches at 13:55. How long is the journey (in minutes)?
  8. 8.Write 1:40 a.m. in 24-hour time. (a) 03:40 (b) 13:40 (c) 01:40
  9. 9.A match starts at 07:50 and lasts 1 hour 45 minutes. At what time does it end? (a) 08:35 (b) 10:35 (c) 09:35
  10. 10.A film is 4 hours 40 minutes long. How many minutes is that?
  11. 11.How many hours are there from 09:00 to 21:00?
  12. 12.A train leaves at 10:40 and reaches at 13:50. How long is the journey (in minutes)?
  13. 13.Write 1:05 p.m. in 24-hour time. (a) 13:05 (b) 01:05 (c) 15:05
  14. 14.A train leaves at 10:55 and reaches at 12:35. How long is the journey (in minutes)?
  15. 15.A match starts at 12:30 and lasts 1 hour 20 minutes. At what time does it end? (a) 14:50 (b) 13:50 (c) 12:50
  16. 16.What is 07:40 in 12-hour time? (a) 7:40 a.m. (b) 7:40 p.m. (c) 9:40 a.m.
  17. 17.What is 21:20 in 12-hour time? (a) 9:20 a.m. (b) 9:20 p.m. (c) 11:20 p.m.
  18. 18.What is 09:00 in 12-hour time? (a) 9:00 a.m. (b) 11:00 a.m. (c) 9:00 p.m.
  19. 19.Write 8:20 a.m. in 24-hour time. (a) 08:20 (b) 10:20 (c) 20:20
  20. 20.What is 19:40 in 12-hour time? (a) 9:40 p.m. (b) 7:40 p.m. (c) 7:40 a.m.
  21. 21.Write 1:05 a.m. in 24-hour time. (a) 13:05 (b) 03:05 (c) 01:05
  22. 22.Write 10:30 p.m. in 24-hour time. (a) 00:30 (b) 10:30 (c) 22:30
  23. 23.Write 2:40 a.m. in 24-hour time. (a) 14:40 (b) 04:40 (c) 02:40
  24. 24.A match starts at 08:30 and lasts 2 hours. At what time does it end? (a) 09:30 (b) 10:30 (c) 11:30
  25. 25.A film is 3 hours 10 minutes long. How many minutes is that?
  26. 26.A match starts at 12:05 and lasts 2 hours 45 minutes. At what time does it end? (a) 15:50 (b) 14:50 (c) 13:50
  27. 27.What is 09:55 in 12-hour time? (a) 11:55 a.m. (b) 9:55 p.m. (c) 9:55 a.m.
  28. 28.A film is 1 hour 20 minutes long. How many minutes is that?
  29. 29.Write 8:05 p.m. in 24-hour time. (a) 20:05 (b) 22:05 (c) 08:05
  30. 30.What is 20:00 in 12-hour time? (a) 10:00 p.m. (b) 8:00 p.m. (c) 8:00 a.m.
  31. 31.A film is 1 hour 35 minutes long. How many minutes is that?
  32. 32.A match starts at 13:25 and lasts 1 hour 10 minutes. At what time does it end? (a) 13:35 (b) 15:35 (c) 14:35
  33. 33.Write 7:50 a.m. in 24-hour time. (a) 19:50 (b) 07:50 (c) 09:50
  34. 34.A match starts at 14:20 and lasts 1 hour 25 minutes. At what time does it end? (a) 16:45 (b) 15:45 (c) 14:45
  35. 35.Write 5:40 a.m. in 24-hour time. (a) 07:40 (b) 17:40 (c) 05:40
  36. 36.What is 14:25 in 12-hour time? (a) 4:25 p.m. (b) 2:25 p.m. (c) 2:25 a.m.
  37. 37.A train leaves at 12:40 and reaches at 14:25. How long is the journey (in minutes)?
  38. 38.A film is 2 hours 30 minutes long. How many minutes is that?
  39. 39.What is 15:05 in 12-hour time? (a) 5:05 p.m. (b) 3:05 a.m. (c) 3:05 p.m.
  40. 40.A train leaves at 17:00 and reaches at 18:30. How long is the journey (in minutes)?

Answer key

  1. 255
  2. 23:00
  3. 180
  4. 70
  5. 1:30 p.m.
  6. 7:55 a.m.
  7. 140
  8. 01:40
  9. 09:35
  10. 280
  11. 12
  12. 190
  13. 13:05
  14. 100
  15. 13:50
  16. 7:40 a.m.
  17. 9:20 p.m.
  18. 9:00 a.m.
  19. 08:20
  20. 7:40 p.m.
  21. 01:05
  22. 22:30
  23. 02:40
  24. 10:30
  25. 190
  26. 14:50
  27. 9:55 a.m.
  28. 80
  29. 20:05
  30. 8:00 p.m.
  31. 95
  32. 14:35
  33. 07:50
  34. 15:45
  35. 05:40
  36. 2:25 p.m.
  37. 105
  38. 150
  39. 3:05 p.m.
  40. 90

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