[tz] Fractional seconds in zic input

Steve Allen sla at ucolick.org
Mon Feb 5 19:11:55 UTC 2018

On Mon 2018-02-05T10:38:56-0800 Paul Eggert hath writ:
> I guess I'm not seeing the harm to go with nanoseconds in the data format;
> if a downstream user wants less precision they can easily round. And
> following Steve Allen's lead, we can mention in the documentation that
> there's no practical use of sub-millisecond precision in these old
> timestamps.

There are serious questions that need context to inform the choices
of IANA tz when looking at sub-second precision.

I ask that everyone take a look at this writeup and the questions
that it poses for what tz database really wants to encode.


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           http://www.ucolick.org/~sla/   Hgt +250 m

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