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Time and Clock Worksheet for Maths Olympiad

Maths Olympiad topic 5: Time and clocks · Set 78 · 40 questions
TalentJR

How to solve it (Jump to the hour): Minutes after: jump to the next full hour, then add the minutes that are left. Minutes before: jump back to the full hour, then go back the rest. How long: change both times to minutes, take away, then change back to hours and minutes (60 minutes = 1 hour).

NameDateTime takenScore ___ / 40
  1. 1.What time will it be 55 minutes after 8:10? (a) 8:05 (b) 9:05 (c) 8:55 (d) 10:05
  2. 2.What time will it be 15 minutes after 3:50? (a) 4:05 (b) 5:05 (c) 3:05 (d) 3:55
  3. 3.What time was it 20 minutes before 8:30? (a) 8:20 (b) 8:10 (c) 7:10 (d) 9:10
  4. 4.A film starts at 8:25 and ends at 9:50. How long is the film? (a) 1 h 35 min (b) 1 h 25 min (c) 2 h 25 min (d) 25 min
  5. 5.What time was it 45 minutes before 8:30? (a) 7:45 (b) 6:45 (c) 7:55 (d) 8:45
  6. 6.A film starts at 4:50 and ends at 7:20. How long is the film? (a) 3 h 30 min (b) 2 h 40 min (c) 2 h 30 min (d) 1 h 30 min
  7. 7.What time will it be 45 minutes after 2:25? (a) 4:10 (b) 2:10 (c) 3:00 (d) 3:10
  8. 8.What time will it be 20 minutes after 10:50? (a) 12:10 (b) 11:00 (c) 11:10 (d) 10:10
  9. 9.A film starts at 4:45 and ends at 5:05. How long is the film? (a) 20 min (b) 30 min (c) 10 min (d) 1 h 20 min
  10. 10.What time will it be 30 minutes after 5:35? (a) 5:55 (b) 5:05 (c) 7:05 (d) 6:05
  11. 11.A film starts at 7:05 and ends at 8:05. How long is the film? (a) 1 h (b) 1 h 10 min (c) 50 min (d) 2 h
  12. 12.What time was it 50 minutes before 7:05? (a) 7:15 (b) 6:15 (c) 5:15 (d) 6:25
  13. 13.What time was it 25 minutes before 7:20? (a) 6:55 (b) 7:55 (c) 5:55 (d) 7:05
  14. 14.A film starts at 1:00 and ends at 1:45. How long is the film? (a) 45 min (b) 35 min (c) 55 min (d) 1 h 45 min
  15. 15.What time will it be 55 minutes after 5:40? (a) 7:35 (b) 5:35 (c) 6:35 (d) 6:25
  16. 16.A film starts at 8:00 and ends at 8:20. How long is the film? (a) 1 h 20 min (b) 20 min (c) 10 min (d) 30 min
  17. 17.What time was it 30 minutes before 6:00? (a) 5:40 (b) 6:30 (c) 5:30 (d) 4:30
  18. 18.What time will it be 55 minutes after 9:30? (a) 10:15 (b) 11:25 (c) 9:25 (d) 10:25
  19. 19.What time was it 45 minutes before 3:45? (a) 4:00 (b) 2:00 (c) 3:10 (d) 3:00
  20. 20.A film starts at 1:20 and ends at 2:20. How long is the film? (a) 2 h (b) 1 h (c) 50 min (d) 1 h 10 min
  21. 21.What time will it be 15 minutes after 4:45? (a) 4:00 (b) 5:00 (c) 4:50 (d) 6:00
  22. 22.What time will it be 20 minutes after 2:35? (a) 2:55 (b) 2:45 (c) 3:55 (d) 1:55
  23. 23.What time was it 45 minutes before 11:45? (a) 11:00 (b) 10:00 (c) 11:10 (d) 12:00
  24. 24.What time will it be 30 minutes after 3:20? (a) 3:40 (b) 2:50 (c) 3:50 (d) 4:50
  25. 25.A film starts at 4:40 and ends at 5:10. How long is the film? (a) 20 min (b) 30 min (c) 40 min (d) 1 h 30 min
  26. 26.What time was it 40 minutes before 3:25? (a) 1:45 (b) 2:55 (c) 3:45 (d) 2:45
  27. 27.What time was it 55 minutes before 8:20? (a) 6:25 (b) 7:25 (c) 7:35 (d) 8:25
  28. 28.What time was it 20 minutes before 10:55? (a) 9:35 (b) 10:45 (c) 10:35 (d) 11:35
  29. 29.What time was it 15 minutes before 4:35? (a) 3:20 (b) 5:20 (c) 4:20 (d) 4:30
  30. 30.A film starts at 5:10 and ends at 6:05. How long is the film? (a) 1 h 55 min (b) 1 h 5 min (c) 45 min (d) 55 min
  31. 31.A film starts at 1:10 and ends at 2:05. How long is the film? (a) 1 h 55 min (b) 45 min (c) 55 min (d) 1 h 5 min
  32. 32.A film starts at 2:50 and ends at 4:10. How long is the film? (a) 1 h 30 min (b) 2 h 20 min (c) 20 min (d) 1 h 20 min
  33. 33.What time will it be 35 minutes after 3:20? (a) 2:55 (b) 3:45 (c) 4:55 (d) 3:55
  34. 34.What time will it be 15 minutes after 6:35? (a) 7:50 (b) 6:40 (c) 6:50 (d) 5:50
  35. 35.A film starts at 5:35 and ends at 5:55. How long is the film? (a) 30 min (b) 20 min (c) 1 h 20 min (d) 10 min
  36. 36.A film starts at 2:35 and ends at 3:15. How long is the film? (a) 50 min (b) 40 min (c) 1 h 40 min (d) 30 min
  37. 37.What time will it be 35 minutes after 9:00? (a) 9:35 (b) 10:35 (c) 8:35 (d) 9:25
  38. 38.What time was it 20 minutes before 6:40? (a) 7:20 (b) 5:20 (c) 6:30 (d) 6:20
  39. 39.What time will it be 15 minutes after 5:20? (a) 5:25 (b) 4:35 (c) 6:35 (d) 5:35
  40. 40.A film starts at 1:35 and ends at 3:15. How long is the film? (a) 1 h 40 min (b) 2 h 40 min (c) 1 h 50 min (d) 40 min

Answer key

  1. 9:05
  2. 4:05
  3. 8:10
  4. 1 h 25 min
  5. 7:45
  6. 2 h 30 min
  7. 3:10
  8. 11:10
  9. 20 min
  10. 6:05
  11. 1 h
  12. 6:15
  13. 6:55
  14. 45 min
  15. 6:35
  16. 20 min
  17. 5:30
  18. 10:25
  19. 3:00
  20. 1 h
  21. 5:00
  22. 2:55
  23. 11:00
  24. 3:50
  25. 30 min
  26. 2:45
  27. 7:25
  28. 10:35
  29. 4:20
  30. 55 min
  31. 55 min
  32. 1 h 20 min
  33. 3:55
  34. 6:50
  35. 20 min
  36. 40 min
  37. 9:35
  38. 6:20
  39. 5:35
  40. 1 h 40 min

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