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Class 4 Maths Worksheet: 24-Hour Clock

Maths worksheets lesson 30: The 24-hour clock and time taken · Set 210 · 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.What is 21:25 in 12-hour time? (a) 9:25 a.m. (b) 9:25 p.m. (c) 11:25 p.m.
  2. 2.Write 1:00 a.m. in 24-hour time. (a) 13:00 (b) 01:00 (c) 03:00
  3. 3.A train leaves at 09:45 and reaches at 11:50. How long is the journey (in minutes)?
  4. 4.What is 18:10 in 12-hour time? (a) 8:10 p.m. (b) 6:10 p.m. (c) 6:10 a.m.
  5. 5.What is 10:55 in 12-hour time? (a) 10:55 a.m. (b) 10:55 p.m. (c) 12:55 a.m.
  6. 6.A match starts at 14:00 and lasts 1 hour 35 minutes. At what time does it end? (a) 14:35 (b) 16:35 (c) 15:35
  7. 7.What is 02:50 in 12-hour time? (a) 4:50 a.m. (b) 2:50 a.m. (c) 2:50 p.m.
  8. 8.What is 01:00 in 12-hour time? (a) 3:00 a.m. (b) 1:00 p.m. (c) 1:00 a.m.
  9. 9.How many hours are there from 10:00 to 20:00?
  10. 10.How many hours are there from 07:00 to 17:00?
  11. 11.A train leaves at 08:50 and reaches at 09:55. How long is the journey (in minutes)?
  12. 12.How many hours are there from 06:00 to 19:00?
  13. 13.Write 3:55 p.m. in 24-hour time. (a) 03:55 (b) 15:55 (c) 17:55
  14. 14.What is 08:50 in 12-hour time? (a) 10:50 a.m. (b) 8:50 p.m. (c) 8:50 a.m.
  15. 15.How many hours are there from 10:00 to 19:00?
  16. 16.How many hours are there from 12:00 to 23:00?
  17. 17.Write 6:50 a.m. in 24-hour time. (a) 06:50 (b) 18:50 (c) 08:50
  18. 18.A film is 1 hour 45 minutes long. How many minutes is that?
  19. 19.A train leaves at 09:45 and reaches at 12:05. How long is the journey (in minutes)?
  20. 20.A film is 1 hour 30 minutes long. How many minutes is that?
  21. 21.A film is 3 hours 45 minutes long. How many minutes is that?
  22. 22.Write 9:45 a.m. in 24-hour time. (a) 21:45 (b) 11:45 (c) 09:45
  23. 23.A match starts at 18:15 and lasts 1 hour 15 minutes. At what time does it end? (a) 19:30 (b) 18:30 (c) 20:30
  24. 24.A train leaves at 08:50 and reaches at 12:00. How long is the journey (in minutes)?
  25. 25.Write 7:35 p.m. in 24-hour time. (a) 21:35 (b) 07:35 (c) 19:35
  26. 26.A match starts at 09:15 and lasts 3 hours 45 minutes. At what time does it end? (a) 14:00 (b) 12:00 (c) 13:00
  27. 27.How many hours are there from 06:00 to 23:00?
  28. 28.Write 3:00 a.m. in 24-hour time. (a) 05:00 (b) 03:00 (c) 15:00
  29. 29.How many hours are there from 10:00 to 13:00?
  30. 30.What is 02:35 in 12-hour time? (a) 2:35 p.m. (b) 4:35 a.m. (c) 2:35 a.m.
  31. 31.A film is 3 hours 40 minutes long. How many minutes is that?
  32. 32.A film is 4 hours 45 minutes long. How many minutes is that?
  33. 33.Write 1:15 a.m. in 24-hour time. (a) 01:15 (b) 03:15 (c) 13:15
  34. 34.A train leaves at 06:15 and reaches at 06:40. How long is the journey (in minutes)?
  35. 35.Write 3:25 a.m. in 24-hour time. (a) 05:25 (b) 15:25 (c) 03:25
  36. 36.Write 11:45 a.m. in 24-hour time. (a) 23:45 (b) 13:45 (c) 11:45
  37. 37.A film is 4 hours 20 minutes long. How many minutes is that?
  38. 38.How many hours are there from 05:00 to 20:00?
  39. 39.How many hours are there from 10:00 to 16:00?
  40. 40.How many hours are there from 05:00 to 08:00?

Answer key

  1. 9:25 p.m.
  2. 01:00
  3. 125
  4. 6:10 p.m.
  5. 10:55 a.m.
  6. 15:35
  7. 2:50 a.m.
  8. 1:00 a.m.
  9. 10
  10. 10
  11. 65
  12. 13
  13. 15:55
  14. 8:50 a.m.
  15. 9
  16. 11
  17. 06:50
  18. 105
  19. 140
  20. 90
  21. 225
  22. 09:45
  23. 19:30
  24. 190
  25. 19:35
  26. 13:00
  27. 17
  28. 03:00
  29. 3
  30. 2:35 a.m.
  31. 220
  32. 285
  33. 01:15
  34. 25
  35. 03:25
  36. 11:45
  37. 260
  38. 15
  39. 6
  40. 3

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