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Class 4 Maths Worksheet: 24-Hour Clock

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

Answer key

  1. 22:15
  2. 9
  3. 13:00
  4. 12
  5. 5:00 p.m.
  6. 4
  7. 5:35 p.m.
  8. 11:25
  9. 23:55
  10. 275
  11. 19:15
  12. 18:10
  13. 10:15
  14. 3:45 a.m.
  15. 7:10 a.m.
  16. 11:15
  17. 16
  18. 4:10 p.m.
  19. 75
  20. 2:20 p.m.
  21. 8
  22. 9
  23. 22:55
  24. 19:50
  25. 135
  26. 3
  27. 285
  28. 05:50
  29. 115
  30. 10:55
  31. 9:15 a.m.
  32. 06:00
  33. 10:00 p.m.
  34. 10
  35. 100
  36. 22:20
  37. 2
  38. 8:40 a.m.
  39. 2:40 a.m.
  40. 125

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