1. World Geography
Time Zones

2. The Basics of Time Zones
In a time zone, the time is the same everywhere. Time zones are generally centered on meridians of a longitude that is a multiple of 15
This is due to the simple reason that there are 24 hours in a day and 360 in a circle
Hence: 360/24hrs = 15)

3. The Time Zones of The World

4. Time Zones Follow-Up Questions: Why do we have time zones?
Explain at least two challenges we would face if there were no time zones.
Why do we change the lines/meridians in which they run?
How else do we change time in specific zones?