[tz] isdst bug Europe/Dublin (tzdb-2019c)

Steve Allen sla at ucolick.org
Mon Dec 16 15:07:12 UTC 2019

On Mon 2019-12-16T14:10:21+0000 Clive D.W. Feather hath writ:
> You take a Gregorian calendar (by default; in principle you could use
> Julian or something else) and use it to count *all* SI seconds, so that
> every day has exactly 86400 seconds in it. It works the same way as UT1,
> but without the unpredictable-length "seconds".

In 1968 between a pair of meetings the atomic clock and CCIR folks
ascertained that they could not use that scheme in broadcast time
signals, and that is when and why the notion of the leap second came
into being.

Steve Allen                    <sla at ucolick.org>              WGS-84 (GPS)
UCO/Lick Observatory--ISB 260  Natural Sciences II, Room 165  Lat  +36.99855
1156 High Street               Voice: +1 831 459 3046         Lng -122.06015
Santa Cruz, CA 95064           https://www.ucolick.org/~sla/  Hgt +250 m

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