Last year at the Language Summit, I proposed to add additional concrete time zones to the standard library . After much work and much more procrastination, I now have now put together my first proposal: support for the IANA time zone database (also called tz, zoneinfo or the Olson database; Wikipedia ). Last week, I submitted it for consideration as PEP 615.

I originally posted it on the discourse last week, and advertised the discussion on some interest-group-specific fora (tz mailing list, datetime-SIG mailing list), but I think it is ready to be advertised to a wider forum, so I am posting it here for your consideration. Please direct comments to the discourse thread, so that the discussion can be as centralized as possible:

Links for easy access:
PEP 615:
Reference implementation:
tzdata repo: