Multiple choice

Which of the following would be the longitudinal distance when there is a difference of one hour in standard time between places?

  1. 60o

  2. 30o

  3. 24o

  4. 15o

Reveal answer Fill a bubble to check yourself
D Correct answer
Explanation

Earth completes one full 360° rotation in 24 hours, creating a time difference of 1 hour for every 15° of longitude (360° ÷ 24 hours = 15° per hour). This is why time zones are roughly based on 15° longitudinal bands. Option D correctly states this relationship.