location of TZ_LIST

[carbonmetrics]

I am looking for the location of TZ_LIST on an Apple Mac.
Where is this located?

[jnd-au]

TZ_LIST is an environment variable, which can be exported from your command-line shell. With macOS, the default shell is zsh. So you can do this (replacing TZ1, TZ2, and TZ3 with your preferences):

export TZ_LIST="TZ1;TZ2;TZ3"

To also make it permanent, you can add the above line to the file .zshenv (or .zshrc) in your user home directory.