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Class 4 Maths Worksheet: 24-Hour Clock

Maths worksheets lesson 30: The 24-hour clock and time taken · Set 678 · 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 10:25 a.m. in 24-hour time. (a) 12:25 (b) 10:25 (c) 22:25
  2. 2.A film is 1 hour 35 minutes long. How many minutes is that?
  3. 3.What is 03:30 in 12-hour time? (a) 3:30 p.m. (b) 5:30 a.m. (c) 3:30 a.m.
  4. 4.What is 01:30 in 12-hour time? (a) 1:30 a.m. (b) 1:30 p.m. (c) 3:30 a.m.
  5. 5.How many hours are there from 05:00 to 10:00?
  6. 6.How many hours are there from 12:00 to 15:00?
  7. 7.A train leaves at 12:00 and reaches at 12:40. How long is the journey (in minutes)?
  8. 8.A match starts at 11:35 and lasts 4 hours 35 minutes. At what time does it end? (a) 15:10 (b) 17:10 (c) 16:10
  9. 9.Write 11:25 a.m. in 24-hour time. (a) 23:25 (b) 11:25 (c) 13:25
  10. 10.A film is 2 hours 20 minutes long. How many minutes is that?
  11. 11.A train leaves at 09:20 and reaches at 10:40. How long is the journey (in minutes)?
  12. 12.Write 3:25 p.m. in 24-hour time. (a) 17:25 (b) 15:25 (c) 03:25
  13. 13.Write 3:00 p.m. in 24-hour time. (a) 15:00 (b) 17:00 (c) 03:00
  14. 14.What is 06:10 in 12-hour time? (a) 8:10 a.m. (b) 6:10 a.m. (c) 6:10 p.m.
  15. 15.A film is 1 hour 15 minutes long. How many minutes is that?
  16. 16.Write 1:05 p.m. in 24-hour time. (a) 01:05 (b) 13:05 (c) 15:05
  17. 17.How many hours are there from 10:00 to 18:00?
  18. 18.A film is 3 hours 5 minutes long. How many minutes is that?
  19. 19.A match starts at 14:35 and lasts 1 hour 15 minutes. At what time does it end? (a) 14:50 (b) 15:50 (c) 16:50
  20. 20.A film is 4 hours 20 minutes long. How many minutes is that?
  21. 21.A film is 3 hours 15 minutes long. How many minutes is that?
  22. 22.Write 11:00 a.m. in 24-hour time. (a) 13:00 (b) 23:00 (c) 11:00
  23. 23.A match starts at 06:30 and lasts 1 hour. At what time does it end? (a) 07:30 (b) 06:30 (c) 08:30
  24. 24.What is 21:40 in 12-hour time? (a) 9:40 p.m. (b) 11:40 p.m. (c) 9:40 a.m.
  25. 25.A train leaves at 17:35 and reaches at 20:55. How long is the journey (in minutes)?
  26. 26.Write 7:55 a.m. in 24-hour time. (a) 09:55 (b) 19:55 (c) 07:55
  27. 27.What is 19:05 in 12-hour time? (a) 7:05 p.m. (b) 9:05 p.m. (c) 7:05 a.m.
  28. 28.How many hours are there from 05:00 to 16:00?
  29. 29.What is 19:20 in 12-hour time? (a) 7:20 p.m. (b) 7:20 a.m. (c) 9:20 p.m.
  30. 30.What is 14:00 in 12-hour time? (a) 4:00 p.m. (b) 2:00 a.m. (c) 2:00 p.m.
  31. 31.How many hours are there from 08:00 to 23:00?
  32. 32.What is 18:15 in 12-hour time? (a) 6:15 a.m. (b) 8:15 p.m. (c) 6:15 p.m.
  33. 33.What is 03:10 in 12-hour time? (a) 5:10 a.m. (b) 3:10 p.m. (c) 3:10 a.m.
  34. 34.How many hours are there from 12:00 to 20:00?
  35. 35.A film is 2 hours 30 minutes long. How many minutes is that?
  36. 36.Write 7:20 p.m. in 24-hour time. (a) 21:20 (b) 19:20 (c) 07:20
  37. 37.A train leaves at 13:25 and reaches at 16:45. How long is the journey (in minutes)?
  38. 38.What is 09:40 in 12-hour time? (a) 9:40 p.m. (b) 9:40 a.m. (c) 11:40 a.m.
  39. 39.Write 1:45 a.m. in 24-hour time. (a) 13:45 (b) 03:45 (c) 01:45
  40. 40.A match starts at 12:25 and lasts 4 hours 10 minutes. At what time does it end? (a) 17:35 (b) 16:35 (c) 15:35

Answer key

  1. 10:25
  2. 95
  3. 3:30 a.m.
  4. 1:30 a.m.
  5. 5
  6. 3
  7. 40
  8. 16:10
  9. 11:25
  10. 140
  11. 80
  12. 15:25
  13. 15:00
  14. 6:10 a.m.
  15. 75
  16. 13:05
  17. 8
  18. 185
  19. 15:50
  20. 260
  21. 195
  22. 11:00
  23. 07:30
  24. 9:40 p.m.
  25. 200
  26. 07:55
  27. 7:05 p.m.
  28. 11
  29. 7:20 p.m.
  30. 2:00 p.m.
  31. 15
  32. 6:15 p.m.
  33. 3:10 a.m.
  34. 8
  35. 150
  36. 19:20
  37. 200
  38. 9:40 a.m.
  39. 01:45
  40. 16:35

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