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Class 4 Maths Worksheet: 24-Hour Clock

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

Answer key

  1. 02:20
  2. 75
  3. 10:10 p.m.
  4. 23:10
  5. 18:25
  6. 9:10 p.m.
  7. 60
  8. 11:05
  9. 10
  10. 80
  11. 9:40 a.m.
  12. 270
  13. 115
  14. 01:10
  15. 165
  16. 7
  17. 17:20
  18. 130
  19. 195
  20. 115
  21. 35
  22. 22:50
  23. 11:30 a.m.
  24. 160
  25. 21:25
  26. 19:40
  27. 9:10 a.m.
  28. 8
  29. 4:45 p.m.
  30. 20:30
  31. 2
  32. 22:10
  33. 4:35 a.m.
  34. 110
  35. 9:25 p.m.
  36. 01:50
  37. 60
  38. 08:15
  39. 8
  40. 11:45 a.m.

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