Multiple choice

If two points are placed just on either side of the International Date Line, the difference in time between these two points will approximately be how many hours?

  1. 12 hours

  2. 18 hours

  3. 24 hours

  4. 2 hours

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

The International Date Line marks the transition between calendar days. When you cross the IDL, the date changes by one full day. Points immediately adjacent on either side are approximately 24 hours apart in local time, with one side being in the current day and the other side being either one day ahead or behind.