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Class 4 Maths Worksheet: 24-Hour Clock

Maths worksheets lesson 30: The 24-hour clock and time taken · Set 227 · 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.A match starts at 11:55 and lasts 3 hours 5 minutes. At what time does it end? (a) 14:00 (b) 15:00 (c) 16:00
  2. 2.Write 2:55 a.m. in 24-hour time. (a) 04:55 (b) 14:55 (c) 02:55
  3. 3.A film is 3 hours 5 minutes long. How many minutes is that?
  4. 4.Write 10:00 p.m. in 24-hour time. (a) 22:00 (b) 00:00 (c) 10:00
  5. 5.What is 04:45 in 12-hour time? (a) 4:45 p.m. (b) 6:45 a.m. (c) 4:45 a.m.
  6. 6.A film is 4 hours 15 minutes long. How many minutes is that?
  7. 7.How many hours are there from 11:00 to 14:00?
  8. 8.Write 8:20 a.m. in 24-hour time. (a) 20:20 (b) 10:20 (c) 08:20
  9. 9.How many hours are there from 09:00 to 19:00?
  10. 10.How many hours are there from 10:00 to 22:00?
  11. 11.A match starts at 11:05 and lasts 1 hour 10 minutes. At what time does it end? (a) 13:15 (b) 11:15 (c) 12:15
  12. 12.What is 22:40 in 12-hour time? (a) 12:40 p.m. (b) 10:40 a.m. (c) 10:40 p.m.
  13. 13.How many hours are there from 12:00 to 22:00?
  14. 14.Write 11:05 p.m. in 24-hour time. (a) 11:05 (b) 01:05 (c) 23:05
  15. 15.How many hours are there from 08:00 to 10:00?
  16. 16.How many hours are there from 05:00 to 09:00?
  17. 17.Write 5:55 a.m. in 24-hour time. (a) 17:55 (b) 05:55 (c) 07:55
  18. 18.What is 02:50 in 12-hour time? (a) 2:50 p.m. (b) 4:50 a.m. (c) 2:50 a.m.
  19. 19.A film is 1 hour 10 minutes long. How many minutes is that?
  20. 20.What is 01:20 in 12-hour time? (a) 1:20 p.m. (b) 1:20 a.m. (c) 3:20 a.m.
  21. 21.A match starts at 09:15 and lasts 1 hour 35 minutes. At what time does it end? (a) 09:50 (b) 10:50 (c) 11:50
  22. 22.What is 17:15 in 12-hour time? (a) 7:15 p.m. (b) 5:15 a.m. (c) 5:15 p.m.
  23. 23.How many hours are there from 06:00 to 16:00?
  24. 24.What is 14:20 in 12-hour time? (a) 2:20 p.m. (b) 2:20 a.m. (c) 4:20 p.m.
  25. 25.A film is 2 hours 45 minutes long. How many minutes is that?
  26. 26.A train leaves at 18:50 and reaches at 21:50. How long is the journey (in minutes)?
  27. 27.How many hours are there from 07:00 to 13:00?
  28. 28.What is 18:35 in 12-hour time? (a) 8:35 p.m. (b) 6:35 p.m. (c) 6:35 a.m.
  29. 29.What is 16:20 in 12-hour time? (a) 4:20 a.m. (b) 6:20 p.m. (c) 4:20 p.m.
  30. 30.How many hours are there from 05:00 to 07:00?
  31. 31.Write 8:15 p.m. in 24-hour time. (a) 08:15 (b) 20:15 (c) 22:15
  32. 32.A match starts at 09:55 and lasts 4 hours 40 minutes. At what time does it end? (a) 13:35 (b) 14:35 (c) 15:35
  33. 33.What is 03:35 in 12-hour time? (a) 5:35 a.m. (b) 3:35 a.m. (c) 3:35 p.m.
  34. 34.A film is 4 hours 25 minutes long. How many minutes is that?
  35. 35.How many hours are there from 08:00 to 12:00?
  36. 36.What is 15:35 in 12-hour time? (a) 5:35 p.m. (b) 3:35 p.m. (c) 3:35 a.m.
  37. 37.A match starts at 12:15 and lasts 1 hour 5 minutes. At what time does it end? (a) 14:20 (b) 12:20 (c) 13:20
  38. 38.Write 3:40 a.m. in 24-hour time. (a) 03:40 (b) 15:40 (c) 05:40
  39. 39.How many hours are there from 11:00 to 16:00?
  40. 40.Write 2:05 p.m. in 24-hour time. (a) 14:05 (b) 02:05 (c) 16:05

Answer key

  1. 15:00
  2. 02:55
  3. 185
  4. 22:00
  5. 4:45 a.m.
  6. 255
  7. 3
  8. 08:20
  9. 10
  10. 12
  11. 12:15
  12. 10:40 p.m.
  13. 10
  14. 23:05
  15. 2
  16. 4
  17. 05:55
  18. 2:50 a.m.
  19. 70
  20. 1:20 a.m.
  21. 10:50
  22. 5:15 p.m.
  23. 10
  24. 2:20 p.m.
  25. 165
  26. 180
  27. 6
  28. 6:35 p.m.
  29. 4:20 p.m.
  30. 2
  31. 20:15
  32. 14:35
  33. 3:35 a.m.
  34. 265
  35. 4
  36. 3:35 p.m.
  37. 13:20
  38. 03:40
  39. 5
  40. 14:05

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