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Class 4 Maths Worksheet: 24-Hour Clock

Maths worksheets lesson 30: The 24-hour clock and time taken · Set 413 · 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 21:45 in 12-hour time? (a) 11:45 p.m. (b) 9:45 p.m. (c) 9:45 a.m.
  2. 2.A train leaves at 07:45 and reaches at 08:55. How long is the journey (in minutes)?
  3. 3.What is 22:50 in 12-hour time? (a) 10:50 p.m. (b) 10:50 a.m. (c) 12:50 p.m.
  4. 4.A train leaves at 15:25 and reaches at 17:40. How long is the journey (in minutes)?
  5. 5.What is 04:35 in 12-hour time? (a) 6:35 a.m. (b) 4:35 p.m. (c) 4:35 a.m.
  6. 6.A film is 3 hours 5 minutes long. How many minutes is that?
  7. 7.A train leaves at 19:00 and reaches at 20:35. How long is the journey (in minutes)?
  8. 8.Write 9:40 a.m. in 24-hour time. (a) 09:40 (b) 21:40 (c) 11:40
  9. 9.What is 05:55 in 12-hour time? (a) 7:55 a.m. (b) 5:55 a.m. (c) 5:55 p.m.
  10. 10.How many hours are there from 08:00 to 23:00?
  11. 11.Write 1:45 a.m. in 24-hour time. (a) 03:45 (b) 13:45 (c) 01:45
  12. 12.Write 11:00 a.m. in 24-hour time. (a) 23:00 (b) 11:00 (c) 13:00
  13. 13.Write 10:35 a.m. in 24-hour time. (a) 22:35 (b) 12:35 (c) 10:35
  14. 14.How many hours are there from 06:00 to 22:00?
  15. 15.A film is 1 hour 35 minutes long. How many minutes is that?
  16. 16.A train leaves at 09:20 and reaches at 10:05. How long is the journey (in minutes)?
  17. 17.A film is 1 hour 15 minutes long. How many minutes is that?
  18. 18.Write 8:10 p.m. in 24-hour time. (a) 20:10 (b) 22:10 (c) 08:10
  19. 19.What is 20:00 in 12-hour time? (a) 8:00 a.m. (b) 8:00 p.m. (c) 10:00 p.m.
  20. 20.A train leaves at 16:45 and reaches at 18:25. How long is the journey (in minutes)?
  21. 21.Write 2:40 p.m. in 24-hour time. (a) 16:40 (b) 02:40 (c) 14:40
  22. 22.What is 07:50 in 12-hour time? (a) 9:50 a.m. (b) 7:50 p.m. (c) 7:50 a.m.
  23. 23.A train leaves at 12:45 and reaches at 13:35. How long is the journey (in minutes)?
  24. 24.Write 6:15 a.m. in 24-hour time. (a) 18:15 (b) 06:15 (c) 08:15
  25. 25.A train leaves at 10:40 and reaches at 14:00. How long is the journey (in minutes)?
  26. 26.What is 07:15 in 12-hour time? (a) 7:15 p.m. (b) 7:15 a.m. (c) 9:15 a.m.
  27. 27.A match starts at 15:40 and lasts 3 hours 40 minutes. At what time does it end? (a) 20:20 (b) 19:20 (c) 18:20
  28. 28.How many hours are there from 05:00 to 22:00?
  29. 29.What is 15:55 in 12-hour time? (a) 3:55 p.m. (b) 5:55 p.m. (c) 3:55 a.m.
  30. 30.Write 11:55 a.m. in 24-hour time. (a) 23:55 (b) 13:55 (c) 11:55
  31. 31.Write 1:05 a.m. in 24-hour time. (a) 01:05 (b) 13:05 (c) 03:05
  32. 32.A train leaves at 09:10 and reaches at 11:40. How long is the journey (in minutes)?
  33. 33.A train leaves at 18:50 and reaches at 20:35. How long is the journey (in minutes)?
  34. 34.A match starts at 09:35 and lasts 1 hour 35 minutes. At what time does it end? (a) 12:10 (b) 11:10 (c) 10:10
  35. 35.A film is 2 hours 20 minutes long. How many minutes is that?
  36. 36.What is 02:10 in 12-hour time? (a) 2:10 a.m. (b) 2:10 p.m. (c) 4:10 a.m.
  37. 37.Write 11:50 p.m. in 24-hour time. (a) 01:50 (b) 23:50 (c) 11:50
  38. 38.Write 4:20 a.m. in 24-hour time. (a) 06:20 (b) 04:20 (c) 16:20
  39. 39.How many hours are there from 09:00 to 19:00?
  40. 40.A match starts at 10:20 and lasts 1 hour. At what time does it end? (a) 12:20 (b) 10:20 (c) 11:20

Answer key

  1. 9:45 p.m.
  2. 70
  3. 10:50 p.m.
  4. 135
  5. 4:35 a.m.
  6. 185
  7. 95
  8. 09:40
  9. 5:55 a.m.
  10. 15
  11. 01:45
  12. 11:00
  13. 10:35
  14. 16
  15. 95
  16. 45
  17. 75
  18. 20:10
  19. 8:00 p.m.
  20. 100
  21. 14:40
  22. 7:50 a.m.
  23. 50
  24. 06:15
  25. 200
  26. 7:15 a.m.
  27. 19:20
  28. 17
  29. 3:55 p.m.
  30. 11:55
  31. 01:05
  32. 150
  33. 105
  34. 11:10
  35. 140
  36. 2:10 a.m.
  37. 23:50
  38. 04:20
  39. 10
  40. 11:20

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