* to...@tuxteam.de <to...@tuxteam.de> [2023-02-01 12:22]:
> ...which stems from the fact that the very concept of "time zone"
> is somewhat ambiguous, too. 

For human who reads it without calculating anything, yes.

For computer which is supposed to be programmed by using the time zone
database, no.

> Some time zone designations carry the fact of whether they are
> supposed to be summer times or not with them (as with CET/CEST),
> some not (as above). The time zone database is only known for a
> limited time into future and may change with political
> vagaries. Yadda, yadda.

Very right. 

At least the history is more certain than the future in regards to
time calculations with computer.

-- 
Jean

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