Thank you for chiming in. In my SQLAlchemy+Postgres app I've chosen to store datetimes as timestamp without timezone columns where the time zone is always UTC.

Thank you for chiming in. In my SQLAlchemy+Postgres app I've chosen to store datetimes as timestamp without timezone columns where the time zone is always UTC. I'm quite happy with that choice. The last thing I want is for Postgres to start implicitly adjusting timestamps. By making the timestamps non-timezone-aware, I'm telling Postgres that if I ever want it to do any time zone conversion, I'll ask for the conversion explicitly, never implicitly. Explicit time zone conversion works quite nicely in Postgres. I want no magic.