Understanding Time Units

Time units are how we measure time. They help us understand how long something takes or when something happens. The main time units we use are seconds, minutes, hours, days, weeks, months, and years.

Key Time Units

  1. Seconds (s):
    • The smallest common unit of time.
    • Example: 60 seconds = 1 minute.
  2. Minutes (min):
    • 1 minute has 60 seconds.
    • Example: 5 minutes = 5 × 60 seconds = 300 seconds.
  3. Hours (h):
    • 1 hour has 60 minutes.
    • Example: 2 hours = 2 × 60 minutes = 120 minutes.
  4. Days:
    • 1 day has 24 hours.
    • Example: 3 days = 3 × 24 hours = 72 hours.
  5. Weeks:
    • 1 week has 7 days.
    • Example: 2 weeks = 2 × 7 days = 14 days.
  6. Months:
    • Generally, 1 month has about 30 or 31 days (February has 28 or 29).
    • Example: 3 months could be 90 days (if counting 30 days per month).
  7. Years:
    • 1 year has 12 months.
    • Example: 2 years = 2 × 12 months = 24 months.

Key Rules for Converting Time Units

  • To convert from a smaller unit to a larger unit, divide.
  • To convert from a larger unit to a smaller unit, multiply.

Tip: Remember:

  • 1 minute = 60 seconds
  • 1 hour = 60 minutes
  • 1 day = 24 hours
  • 1 week = 7 days
  • 1 year = 365 days (or 366 days in a leap year)

Questions

Easy Level (20 Questions)

  1. How many seconds are in 1 minute?
  2. How many minutes are in 1 hour?
  3. How many hours are in 1 day?
  4. How many days are in a week?
  5. How many weeks are in 1 year?
  6. What is 30 minutes in seconds?
  7. What is 2 hours in minutes?
  8. How many seconds are in 3 minutes?
  9. How many days are in 2 weeks?
  10. What is 1 hour and 30 minutes in minutes?
  11. How many seconds are in 1 hour?
  12. How many days are in 1 month (approximately)?
  13. What is 5 hours in minutes?
  14. How many minutes are in 3 hours?
  15. How many weeks are in 6 months (approximately)?
  16. What is 2 days in hours?
  17. How many seconds are in 1 day?
  18. What is 1 year in days (not a leap year)?
  19. How many minutes are in 24 hours?
  20. How many months are in 3 years?

Medium Level (20 Questions)

  1. If a movie lasts 2 hours and 15 minutes, how many minutes is that?
  2. How many seconds are in 5 minutes and 45 seconds?
  3. Convert 72 hours into days.
  4. How many days are in 4 weeks and 2 days?
  5. If you have 3 hours and 30 minutes, how many seconds is that?
  6. Calculate the number of minutes in 10 hours.
  7. How many seconds are in 2 days?
  8. Convert 18 months into years.
  9. If a train departs at 2:30 PM and arrives at 4:00 PM, how long is the journey?
  10. How many weeks are there in 1.5 years?
  11. If a book takes 4 hours to read, how many minutes is that?
  12. How many months are in 250 days?
  13. If a task takes 1 hour and 20 minutes, how many seconds is that?
  14. Convert 5 days to hours.
  15. If you run for 45 minutes, how many seconds did you run?
  16. How many days are in 6 months (using average)?
  17. If a concert starts at 7:00 PM and lasts for 2 hours and 30 minutes, what time does it end?
  18. How many seconds are there in 3.5 hours?
  19. If a bus takes 1 hour and 15 minutes for a journey, how many minutes is that in total?
  20. How many days are in 3 years (not a leap year)?

Hard Level (20 Questions)

  1. If an event lasts 2 hours and 45 minutes, how many seconds is that?
  2. You watch a 90-minute film. How many seconds is that?
  3. How many hours are in 9 weeks?
  4. A project takes 150 minutes. How many hours and minutes is that?
  5. If a person sleeps for 8 hours a night, how many hours do they sleep in 30 days?
  6. Convert 450 minutes into hours and minutes.
  7. If a game lasts for 1 hour and 25 minutes, how many seconds is that?
  8. A train leaves at 10:15 AM and arrives at 12:50 PM. How long is the journey in hours and minutes?
  9. If you need to complete 3 tasks that take 45 minutes each, how much time will that take in hours?
  10. How many months are there in 5 years and 3 months?
  11. If a race starts at 3:00 PM and lasts for 2 hours and 15 minutes, what is the finish time?
  12. How many minutes are in 4.5 hours?
  13. Convert 1,440 seconds into minutes.
  14. If you read 3 books in 6 weeks, how many weeks does it take to read one book?
  15. How many days are in 1.5 years?
  16. If a class runs for 1 hour and 50 minutes, how many seconds does it last?
  17. If you exercise for 30 minutes every day, how many minutes do you exercise in 4 weeks?
  18. Convert 1 year into weeks.
  19. How many days are in 2 years and 6 months?
  20. If a movie is 124 minutes long, how many hours and minutes is that?

Answers

Easy Level Answers

  1. 60 seconds
  2. 60 minutes
  3. 24 hours
  4. 7 days
  5. 52 weeks
  6. 1800 seconds
  7. 120 minutes
  8. 180 seconds
  9. 14 days
  10. 90 minutes
  11. 3600 seconds
  12. 30 days
  13. 300 minutes
  14. 180 minutes
  15. 26 weeks
  16. 48 hours
  17. 86400 seconds
  18. 365 days
  19. 1440 minutes
  20. 36 months

Medium Level Answers

  1. 135 minutes
  2. 345 seconds
  3. 3 days
  4. 30 days
  5. 12600 seconds
  6. 600 minutes
  7. 172800 seconds
  8. 1.5 years
  9. 1 hour and 30 minutes
  10. 78 weeks
  11. 240 minutes
  12. 8 months
  13. 4800 seconds
  14. 120 hours
  15. 182 days
  16. 180 days
  17. 9:30 PM
  18. 12600 seconds
  19. 75 minutes
  20. 1095 days

Hard Level Answers

  1. 9900 seconds
  2. 5400 seconds
  3. 216 hours
  4. 2 hours and 30 minutes
  5. 240 hours
  6. 7 hours and 30 minutes
  7. 4950 seconds
  8. 2 hours and 35 minutes
  9. 2 hours and 15 minutes
  10. 63 months
  11. 5:15 PM
  12. 270 minutes
  13. 24 minutes
  14. 6 weeks
  15. 547 days
  16. 6600 seconds
  17. 840 minutes
  18. 52 weeks
  19. 912 days
  20. 2 hours and 4 minutes

Feel free to ask questions if you’re unsure about anything! Remember, practice makes perfect!