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Class 4 Maths Worksheet: 24-Hour Clock

Maths worksheets lesson 30: The 24-hour clock and time taken · Set 577 · 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.Write 8:05 p.m. in 24-hour time. (a) 20:05 (b) 22:05 (c) 08:05
  3. 3.Write 3:20 p.m. in 24-hour time. (a) 15:20 (b) 17:20 (c) 03:20
  4. 4.A match starts at 12:05 and lasts 2 hours 35 minutes. At what time does it end? (a) 15:40 (b) 14:40 (c) 13:40
  5. 5.A train leaves at 16:45 and reaches at 19:35. How long is the journey (in minutes)?
  6. 6.Write 5:00 a.m. in 24-hour time. (a) 17:00 (b) 07:00 (c) 05:00
  7. 7.Write 4:05 a.m. in 24-hour time. (a) 06:05 (b) 16:05 (c) 04:05
  8. 8.What is 03:30 in 12-hour time? (a) 3:30 a.m. (b) 3:30 p.m. (c) 5:30 a.m.
  9. 9.A match starts at 18:10 and lasts 1 hour 55 minutes. At what time does it end? (a) 20:05 (b) 21:05 (c) 19:05
  10. 10.A film is 2 hours 30 minutes long. How many minutes is that?
  11. 11.Write 11:20 a.m. in 24-hour time. (a) 11:20 (b) 23:20 (c) 13:20
  12. 12.What is 15:45 in 12-hour time? (a) 3:45 p.m. (b) 5:45 p.m. (c) 3:45 a.m.
  13. 13.Write 3:40 p.m. in 24-hour time. (a) 15:40 (b) 03:40 (c) 17:40
  14. 14.Write 7:40 p.m. in 24-hour time. (a) 21:40 (b) 19:40 (c) 07:40
  15. 15.A match starts at 13:10 and lasts 1 hour 15 minutes. At what time does it end? (a) 13:25 (b) 15:25 (c) 14:25
  16. 16.Write 10:50 p.m. in 24-hour time. (a) 10:50 (b) 22:50 (c) 00:50
  17. 17.What is 18:35 in 12-hour time? (a) 6:35 p.m. (b) 6:35 a.m. (c) 8:35 p.m.
  18. 18.How many hours are there from 06:00 to 11:00?
  19. 19.What is 23:05 in 12-hour time? (a) 11:05 a.m. (b) 11:05 p.m. (c) 1:05 p.m.
  20. 20.Write 2:45 a.m. in 24-hour time. (a) 02:45 (b) 14:45 (c) 04:45
  21. 21.A train leaves at 19:35 and reaches at 20:20. How long is the journey (in minutes)?
  22. 22.What is 05:35 in 12-hour time? (a) 5:35 a.m. (b) 5:35 p.m. (c) 7:35 a.m.
  23. 23.What is 21:50 in 12-hour time? (a) 9:50 a.m. (b) 9:50 p.m. (c) 11:50 p.m.
  24. 24.Write 1:05 a.m. in 24-hour time. (a) 01:05 (b) 13:05 (c) 03:05
  25. 25.A film is 3 hours 25 minutes long. How many minutes is that?
  26. 26.A match starts at 09:15 and lasts 1 hour 10 minutes. At what time does it end? (a) 11:25 (b) 09:25 (c) 10:25
  27. 27.What is 19:55 in 12-hour time? (a) 9:55 p.m. (b) 7:55 a.m. (c) 7:55 p.m.
  28. 28.A train leaves at 16:55 and reaches at 18:45. How long is the journey (in minutes)?
  29. 29.Write 1:50 p.m. in 24-hour time. (a) 01:50 (b) 15:50 (c) 13:50
  30. 30.What is 13:40 in 12-hour time? (a) 3:40 p.m. (b) 1:40 p.m. (c) 1:40 a.m.
  31. 31.What is 04:30 in 12-hour time? (a) 6:30 a.m. (b) 4:30 p.m. (c) 4:30 a.m.
  32. 32.A film is 2 hours 10 minutes long. How many minutes is that?
  33. 33.A match starts at 07:15 and lasts 4 hours 10 minutes. At what time does it end? (a) 11:25 (b) 10:25 (c) 12:25
  34. 34.How many hours are there from 08:00 to 10:00?
  35. 35.How many hours are there from 11:00 to 19:00?
  36. 36.How many hours are there from 12:00 to 20:00?
  37. 37.Write 1:55 a.m. in 24-hour time. (a) 03:55 (b) 13:55 (c) 01:55
  38. 38.A train leaves at 14:40 and reaches at 15:30. How long is the journey (in minutes)?
  39. 39.A film is 2 hours 25 minutes long. How many minutes is that?
  40. 40.Write 2:35 p.m. in 24-hour time. (a) 02:35 (b) 16:35 (c) 14:35

Answer key

  1. 4:10 p.m.
  2. 20:05
  3. 15:20
  4. 14:40
  5. 170
  6. 05:00
  7. 04:05
  8. 3:30 a.m.
  9. 20:05
  10. 150
  11. 11:20
  12. 3:45 p.m.
  13. 15:40
  14. 19:40
  15. 14:25
  16. 22:50
  17. 6:35 p.m.
  18. 5
  19. 11:05 p.m.
  20. 02:45
  21. 45
  22. 5:35 a.m.
  23. 9:50 p.m.
  24. 01:05
  25. 205
  26. 10:25
  27. 7:55 p.m.
  28. 110
  29. 13:50
  30. 1:40 p.m.
  31. 4:30 a.m.
  32. 130
  33. 11:25
  34. 2
  35. 8
  36. 8
  37. 01:55
  38. 50
  39. 145
  40. 14:35

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