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Class 4 Maths Worksheet: 24-Hour Clock

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

Answer key

  1. 10
  2. 65
  3. 11:40 p.m.
  4. 8:30 p.m.
  5. 13:05
  6. 10:15
  7. 03:00
  8. 50
  9. 25
  10. 2
  11. 15
  12. 2
  13. 75
  14. 07:20
  15. 65
  16. 16
  17. 13:15
  18. 2
  19. 15:00
  20. 11:25
  21. 195
  22. 17
  23. 165
  24. 9:30 p.m.
  25. 85
  26. 02:45
  27. 6
  28. 4:40 a.m.
  29. 5
  30. 180
  31. 6:25 p.m.
  32. 10:15
  33. 8:10 p.m.
  34. 235
  35. 3:15 p.m.
  36. 3:30 p.m.
  37. 7
  38. 11:15
  39. 13:00
  40. 2:05 a.m.

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