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Class 4 Maths Worksheet: 24-Hour Clock

Maths worksheets lesson 30: The 24-hour clock and time taken · Set 366 · 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 16:10 in 12-hour time? (a) 4:10 p.m. (b) 4:10 a.m. (c) 6:10 p.m.
  2. 2.A film is 4 hours 30 minutes long. How many minutes is that?
  3. 3.What is 22:40 in 12-hour time? (a) 12:40 p.m. (b) 10:40 p.m. (c) 10:40 a.m.
  4. 4.Write 6:40 p.m. in 24-hour time. (a) 20:40 (b) 18:40 (c) 06:40
  5. 5.A film is 2 hours 30 minutes long. How many minutes is that?
  6. 6.How many hours are there from 11:00 to 23:00?
  7. 7.Write 2:05 a.m. in 24-hour time. (a) 04:05 (b) 02:05 (c) 14:05
  8. 8.A film is 2 hours 5 minutes long. How many minutes is that?
  9. 9.What is 03:00 in 12-hour time? (a) 3:00 a.m. (b) 3:00 p.m. (c) 5:00 a.m.
  10. 10.A train leaves at 09:45 and reaches at 10:10. How long is the journey (in minutes)?
  11. 11.A match starts at 16:25 and lasts 1 hour 55 minutes. At what time does it end? (a) 18:20 (b) 19:20 (c) 17:20
  12. 12.A match starts at 17:15 and lasts 4 hours 10 minutes. At what time does it end? (a) 22:25 (b) 20:25 (c) 21:25
  13. 13.What is 19:50 in 12-hour time? (a) 7:50 p.m. (b) 7:50 a.m. (c) 9:50 p.m.
  14. 14.Write 4:00 a.m. in 24-hour time. (a) 16:00 (b) 06:00 (c) 04:00
  15. 15.How many hours are there from 05:00 to 12:00?
  16. 16.A film is 2 hours 45 minutes long. How many minutes is that?
  17. 17.A train leaves at 07:20 and reaches at 08:00. How long is the journey (in minutes)?
  18. 18.Write 11:55 p.m. in 24-hour time. (a) 01:55 (b) 23:55 (c) 11:55
  19. 19.A match starts at 13:00 and lasts 1 hour 40 minutes. At what time does it end? (a) 13:40 (b) 15:40 (c) 14:40
  20. 20.What is 20:45 in 12-hour time? (a) 8:45 a.m. (b) 10:45 p.m. (c) 8:45 p.m.
  21. 21.What is 10:40 in 12-hour time? (a) 10:40 a.m. (b) 10:40 p.m. (c) 12:40 a.m.
  22. 22.What is 22:45 in 12-hour time? (a) 10:45 a.m. (b) 10:45 p.m. (c) 12:45 p.m.
  23. 23.Write 8:30 p.m. in 24-hour time. (a) 08:30 (b) 22:30 (c) 20:30
  24. 24.Write 9:45 p.m. in 24-hour time. (a) 09:45 (b) 23:45 (c) 21:45
  25. 25.Write 8:35 a.m. in 24-hour time. (a) 08:35 (b) 20:35 (c) 10:35
  26. 26.How many hours are there from 09:00 to 19:00?
  27. 27.A train leaves at 07:10 and reaches at 10:05. How long is the journey (in minutes)?
  28. 28.A train leaves at 12:35 and reaches at 15:55. How long is the journey (in minutes)?
  29. 29.A match starts at 12:30 and lasts 3 hours 15 minutes. At what time does it end? (a) 16:45 (b) 14:45 (c) 15:45
  30. 30.How many hours are there from 06:00 to 18:00?
  31. 31.A match starts at 12:30 and lasts 2 hours 15 minutes. At what time does it end? (a) 15:45 (b) 14:45 (c) 13:45
  32. 32.A film is 4 hours 5 minutes long. How many minutes is that?
  33. 33.A train leaves at 16:10 and reaches at 16:50. How long is the journey (in minutes)?
  34. 34.What is 16:35 in 12-hour time? (a) 4:35 a.m. (b) 6:35 p.m. (c) 4:35 p.m.
  35. 35.Write 8:20 p.m. in 24-hour time. (a) 22:20 (b) 08:20 (c) 20:20
  36. 36.A film is 4 hours 40 minutes long. How many minutes is that?
  37. 37.Write 10:40 a.m. in 24-hour time. (a) 12:40 (b) 22:40 (c) 10:40
  38. 38.What is 11:40 in 12-hour time? (a) 11:40 p.m. (b) 1:40 a.m. (c) 11:40 a.m.
  39. 39.Write 8:05 p.m. in 24-hour time. (a) 20:05 (b) 08:05 (c) 22:05
  40. 40.Write 11:10 a.m. in 24-hour time. (a) 11:10 (b) 23:10 (c) 13:10

Answer key

  1. 4:10 p.m.
  2. 270
  3. 10:40 p.m.
  4. 18:40
  5. 150
  6. 12
  7. 02:05
  8. 125
  9. 3:00 a.m.
  10. 25
  11. 18:20
  12. 21:25
  13. 7:50 p.m.
  14. 04:00
  15. 7
  16. 165
  17. 40
  18. 23:55
  19. 14:40
  20. 8:45 p.m.
  21. 10:40 a.m.
  22. 10:45 p.m.
  23. 20:30
  24. 21:45
  25. 08:35
  26. 10
  27. 175
  28. 200
  29. 15:45
  30. 12
  31. 14:45
  32. 245
  33. 40
  34. 4:35 p.m.
  35. 20:20
  36. 280
  37. 10:40
  38. 11:40 a.m.
  39. 20:05
  40. 11:10

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