How the International Date Line works, explained: When dealing with maps and time zones, it is important to understand what and where the International Date Line (IDL) is, as well as the Prime Meridian. In this video, the following aspects are explained:
a. What is the IDL?
a. Why is it indicated on certain maps?
b. Why isn't it straight?
Feel free to watch my other videos on mapwork and Geography:    • Geography mapwork / mapping