Use upstream for timezone language localization
https://hosted.weblate.org/projects/turris/foris-tzinfo/ is near impossible to translate well seeing as the different names don't specify what location they belong to, and it is also a duplicated effort. I don't know how correct or updated the list is, but these are concerns to be avoided.
- https://pypi.org/project/l18n/
- https://www.iana.org/time-zones
- babel.pocoo.org/en/latest/dates.html
All attempt to solve the issue.