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Class 4 Maths Worksheet: 24-Hour Clock

Maths worksheets lesson 30: The 24-hour clock and time taken · Set 122 · 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 film is 1 hour 15 minutes long. How many minutes is that?
  2. 2.Write 1:30 p.m. in 24-hour time. (a) 15:30 (b) 13:30 (c) 01:30
  3. 3.A match starts at 12:05 and lasts 2 hours 25 minutes. At what time does it end? (a) 15:30 (b) 14:30 (c) 13:30
  4. 4.Write 2:35 a.m. in 24-hour time. (a) 02:35 (b) 04:35 (c) 14:35
  5. 5.Write 2:50 a.m. in 24-hour time. (a) 14:50 (b) 04:50 (c) 02:50
  6. 6.What is 01:00 in 12-hour time? (a) 1:00 p.m. (b) 3:00 a.m. (c) 1:00 a.m.
  7. 7.What is 05:50 in 12-hour time? (a) 5:50 a.m. (b) 5:50 p.m. (c) 7:50 a.m.
  8. 8.A match starts at 07:10 and lasts 1 hour 5 minutes. At what time does it end? (a) 08:15 (b) 07:15 (c) 09:15
  9. 9.A film is 2 hours 10 minutes long. How many minutes is that?
  10. 10.A film is 3 hours 5 minutes long. How many minutes is that?
  11. 11.Write 9:20 a.m. in 24-hour time. (a) 09:20 (b) 11:20 (c) 21:20
  12. 12.A match starts at 12:25 and lasts 1 hour 40 minutes. At what time does it end? (a) 13:05 (b) 14:05 (c) 15:05
  13. 13.A train leaves at 12:35 and reaches at 14:15. How long is the journey (in minutes)?
  14. 14.A match starts at 14:30 and lasts 2 hours. At what time does it end? (a) 16:30 (b) 15:30 (c) 17:30
  15. 15.A train leaves at 11:25 and reaches at 12:40. How long is the journey (in minutes)?
  16. 16.A film is 4 hours 45 minutes long. How many minutes is that?
  17. 17.How many hours are there from 10:00 to 23:00?
  18. 18.How many hours are there from 06:00 to 23:00?
  19. 19.Write 2:15 a.m. in 24-hour time. (a) 02:15 (b) 14:15 (c) 04:15
  20. 20.How many hours are there from 06:00 to 18:00?
  21. 21.A film is 4 hours 25 minutes long. How many minutes is that?
  22. 22.How many hours are there from 12:00 to 21:00?
  23. 23.What is 04:30 in 12-hour time? (a) 6:30 a.m. (b) 4:30 a.m. (c) 4:30 p.m.
  24. 24.How many hours are there from 09:00 to 17:00?
  25. 25.Write 1:20 a.m. in 24-hour time. (a) 03:20 (b) 13:20 (c) 01:20
  26. 26.Write 5:25 p.m. in 24-hour time. (a) 05:25 (b) 17:25 (c) 19:25
  27. 27.A match starts at 16:35 and lasts 1 hour. At what time does it end? (a) 17:35 (b) 16:35 (c) 18:35
  28. 28.Write 7:10 p.m. in 24-hour time. (a) 07:10 (b) 19:10 (c) 21:10
  29. 29.What is 14:35 in 12-hour time? (a) 2:35 a.m. (b) 4:35 p.m. (c) 2:35 p.m.
  30. 30.What is 19:30 in 12-hour time? (a) 7:30 p.m. (b) 9:30 p.m. (c) 7:30 a.m.
  31. 31.How many hours are there from 12:00 to 20:00?
  32. 32.How many hours are there from 08:00 to 17:00?
  33. 33.A match starts at 15:40 and lasts 4 hours 30 minutes. At what time does it end? (a) 20:10 (b) 19:10 (c) 21:10
  34. 34.A match starts at 10:50 and lasts 2 hours. At what time does it end? (a) 12:50 (b) 13:50 (c) 11:50
  35. 35.How many hours are there from 06:00 to 14:00?
  36. 36.Write 9:20 p.m. in 24-hour time. (a) 09:20 (b) 21:20 (c) 23:20
  37. 37.A match starts at 07:40 and lasts 2 hours 10 minutes. At what time does it end? (a) 10:50 (b) 09:50 (c) 08:50
  38. 38.Write 7:05 a.m. in 24-hour time. (a) 07:05 (b) 09:05 (c) 19:05
  39. 39.Write 7:00 a.m. in 24-hour time. (a) 07:00 (b) 19:00 (c) 09:00
  40. 40.Write 3:20 a.m. in 24-hour time. (a) 15:20 (b) 05:20 (c) 03:20

Answer key

  1. 75
  2. 13:30
  3. 14:30
  4. 02:35
  5. 02:50
  6. 1:00 a.m.
  7. 5:50 a.m.
  8. 08:15
  9. 130
  10. 185
  11. 09:20
  12. 14:05
  13. 100
  14. 16:30
  15. 75
  16. 285
  17. 13
  18. 17
  19. 02:15
  20. 12
  21. 265
  22. 9
  23. 4:30 a.m.
  24. 8
  25. 01:20
  26. 17:25
  27. 17:35
  28. 19:10
  29. 2:35 p.m.
  30. 7:30 p.m.
  31. 8
  32. 9
  33. 20:10
  34. 12:50
  35. 8
  36. 21:20
  37. 09:50
  38. 07:05
  39. 07:00
  40. 03:20

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