[LEAPSECS] ISO 8601 Z designator improper before 1972?

[Poul-Henning Kamp]

In message <09364CFCA84C4DBE82562A5A33318D50 at grendel>, "Gerard Ashton" writes:


>is it fair to conclude that it is improper to use the "Z" designator for any

>date/time in the ISO 8601 format prior to 1 January 1972?


No. "Zulu Time" is much older than 1972 and the 'Z' designator goes
waaay back.

I can't remember if the letter designators of the timezones were decided
on the merdidian conference (188x, Washington) or if they were just
discussed, but that is the sort of age.

International telegrams used the letter designators in some cases.

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