I need some way to list all tags in my system by the date they were created but am not sure if I can get that data via git-log. Ideas?
If it’s an annotated tag, you can use the tag date:
git for-each-ref --sort=taggerdate --format '%(refname) %(taggerdate)' refs/tags
But if it’s a lightweight tag, there’s no information about when it was created (all it does is name an object).