Geography of Time Zones
A time zone is a region of the Earth that uses the same standard time, which is commonly referred to as the local time.
Which Country Has the Most Time Zones?
Find out which country has the most time zones and how many countries in the world have at least two time zones.
Geography of the International Date Line
The International Date Line is an imaginary line of longitude that divides two days and is placed at 180 degrees east or west of the Greenwich Meridian.