On Fri, 6 May 2022 at 03:04, Jerry Sievers <gsievers19@xxxxxxxxxxx> wrote: > > Has anyone run into This? > > Psycopg3 fails to resolve timezone localtime on MacOS (Catalina). That warning is typical on Windows, which doesn't have a system timezone database, and on minimal Alpine installations, where the apk package 'tzdata' must be installed. Never seen it reported on macOS before. The workaround on Windows is to install the python package tzdata (https://pypi.org/project/tzdata/), which is a windows dependency of psycopg. Maybe you have a broken python package called tzdata? Your Python installation seems mildly broken. 'localtime' is a weird timezone. However it does work on Linux for me. -- Daniele