We have assume_timezone to go from wall time timestamp to timestamp with a timezone. We might want a reverse operation to go from timestamp with a timezone to wall time.

This is not needed for computation within Arrow, but would be needed if an application outsides of Arrow consumes wall time. E.g.: https://stackoverflow.com/questions/73275465/how-to-keep-original-datatime-in-pyarrow-table/73276431

Reporter: Rok Mihevc / @rok
Watchers: Rok Mihevc / @rok

Related issues:

• [C++] Kernel to localize naive timestamps to a timezone (preserving clock-time) (is related to)

_{Note: This issue was originally created as ARROW-17935. Please see the migration documentation for further details.}