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Class 4 Maths Worksheet: 24-Hour Clock

Maths worksheets lesson 30: The 24-hour clock and time taken · Set 552 · 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 9:05 a.m. in 24-hour time. (a) 21:05 (b) 11:05 (c) 09:05
  2. 2.What is 20:30 in 12-hour time? (a) 8:30 a.m. (b) 8:30 p.m. (c) 10:30 p.m.
  3. 3.A film is 4 hours 15 minutes long. How many minutes is that?
  4. 4.A film is 4 hours 5 minutes long. How many minutes is that?
  5. 5.How many hours are there from 08:00 to 20:00?
  6. 6.How many hours are there from 07:00 to 22:00?
  7. 7.How many hours are there from 05:00 to 16:00?
  8. 8.A train leaves at 17:40 and reaches at 20:55. How long is the journey (in minutes)?
  9. 9.A film is 4 hours 25 minutes long. How many minutes is that?
  10. 10.How many hours are there from 12:00 to 23:00?
  11. 11.What is 10:10 in 12-hour time? (a) 10:10 p.m. (b) 10:10 a.m. (c) 12:10 a.m.
  12. 12.What is 18:10 in 12-hour time? (a) 8:10 p.m. (b) 6:10 a.m. (c) 6:10 p.m.
  13. 13.What is 04:10 in 12-hour time? (a) 6:10 a.m. (b) 4:10 a.m. (c) 4:10 p.m.
  14. 14.How many hours are there from 08:00 to 17:00?
  15. 15.A train leaves at 07:25 and reaches at 10:25. How long is the journey (in minutes)?
  16. 16.A train leaves at 07:00 and reaches at 07:25. How long is the journey (in minutes)?
  17. 17.What is 21:55 in 12-hour time? (a) 9:55 p.m. (b) 9:55 a.m. (c) 11:55 p.m.
  18. 18.A match starts at 17:05 and lasts 3 hours 15 minutes. At what time does it end? (a) 21:20 (b) 19:20 (c) 20:20
  19. 19.What is 18:50 in 12-hour time? (a) 8:50 p.m. (b) 6:50 a.m. (c) 6:50 p.m.
  20. 20.What is 17:45 in 12-hour time? (a) 7:45 p.m. (b) 5:45 a.m. (c) 5:45 p.m.
  21. 21.What is 07:35 in 12-hour time? (a) 7:35 p.m. (b) 9:35 a.m. (c) 7:35 a.m.
  22. 22.A train leaves at 13:05 and reaches at 14:20. How long is the journey (in minutes)?
  23. 23.A film is 4 hours 50 minutes long. How many minutes is that?
  24. 24.A train leaves at 13:40 and reaches at 16:20. How long is the journey (in minutes)?
  25. 25.How many hours are there from 10:00 to 19:00?
  26. 26.What is 13:00 in 12-hour time? (a) 1:00 p.m. (b) 1:00 a.m. (c) 3:00 p.m.
  27. 27.What is 14:30 in 12-hour time? (a) 4:30 p.m. (b) 2:30 p.m. (c) 2:30 a.m.
  28. 28.A film is 2 hours 55 minutes long. How many minutes is that?
  29. 29.Write 5:00 a.m. in 24-hour time. (a) 07:00 (b) 05:00 (c) 17:00
  30. 30.A train leaves at 12:05 and reaches at 15:10. How long is the journey (in minutes)?
  31. 31.Write 3:10 a.m. in 24-hour time. (a) 15:10 (b) 05:10 (c) 03:10
  32. 32.A train leaves at 12:55 and reaches at 14:20. How long is the journey (in minutes)?
  33. 33.What is 11:10 in 12-hour time? (a) 11:10 a.m. (b) 1:10 a.m. (c) 11:10 p.m.
  34. 34.How many hours are there from 06:00 to 13:00?
  35. 35.Write 10:45 p.m. in 24-hour time. (a) 10:45 (b) 00:45 (c) 22:45
  36. 36.What is 13:40 in 12-hour time? (a) 1:40 a.m. (b) 1:40 p.m. (c) 3:40 p.m.
  37. 37.What is 04:25 in 12-hour time? (a) 6:25 a.m. (b) 4:25 a.m. (c) 4:25 p.m.
  38. 38.Write 2:25 a.m. in 24-hour time. (a) 02:25 (b) 14:25 (c) 04:25
  39. 39.A film is 1 hour 30 minutes long. How many minutes is that?
  40. 40.A match starts at 10:00 and lasts 2 hours 15 minutes. At what time does it end? (a) 13:15 (b) 11:15 (c) 12:15

Answer key

  1. 09:05
  2. 8:30 p.m.
  3. 255
  4. 245
  5. 12
  6. 15
  7. 11
  8. 195
  9. 265
  10. 11
  11. 10:10 a.m.
  12. 6:10 p.m.
  13. 4:10 a.m.
  14. 9
  15. 180
  16. 25
  17. 9:55 p.m.
  18. 20:20
  19. 6:50 p.m.
  20. 5:45 p.m.
  21. 7:35 a.m.
  22. 75
  23. 290
  24. 160
  25. 9
  26. 1:00 p.m.
  27. 2:30 p.m.
  28. 175
  29. 05:00
  30. 185
  31. 03:10
  32. 85
  33. 11:10 a.m.
  34. 7
  35. 22:45
  36. 1:40 p.m.
  37. 4:25 a.m.
  38. 02:25
  39. 90
  40. 12:15

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