Trevor Talbot wrote:
Thinking that it might have had out of date zone rules brings up an
interesting scenario though.  Consider a closed (no networking or
global interest) filing system in a local organization's office, where
it's used to record the minutes of meetings and such via human input.
It would seem that the correct time to record in that case is in fact
the local time, not UTC.  If that system is left alone for years, and
does not receive any zone rule updates, it will likely begin storing
the wrong UTC values.  When the data is later transported out
(upgrade, archive, whatever), it will be incorrect unless you use that
particular snapshot of the zone rules.

That situation might sound a bit contrived, but I think the real point
is that even for some records of observed times, the local time is the
authoritative one, not UTC.

...and for that scenario you have TIMESTAMP WITHOUT TIME ZONE


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