This was the first thing I ever did in the CLI (Command Line Interface) or Command Prompt (CMD) in Windows.
It is what set me off on the this whole quest of learning about computers and taking control and ownership in the way I use technology.
More on that story here
So, I thought it would be nice as a first resource post.
Windows Time Zone Utility
The Windows Time Zone Utility tzutil
is a built-in command-line tool for managing system time zones.