On Tuesday, September 21, 2021, Peter J. Holzer <hjp-pg...@hjp.at> wrote:
> > These two values are completely indistinguishable. That's good for a > timestamp (they are the same time after all). But they are not a > "timestamp with time zone". The time zone is not part of the value but > of the environment. > No, it’s inherent to the data type itself. The data type has an implied time zone of UTC. That is a reasonable definition of “with” in my book. If I see “20:05” I need to know the type of data to know whether its a time or interval - values without types are incomplete. i.e., the type can supply relevant context, like a reference time zone. David J.