On Sun, 16 Oct 2011 13:39:24 -0500, Shmuel Metz (Seymour J.) wrote:
>In on 10/16/2011 at 01:27 AM, Paul Gilmartin said:
>
>>And in UNIX (POSIX) the concept of a semiannual "change" doesn't
>>exist.
>
>Of course it exists; TZ specifies when to switch.
>
It never "switch[es]". TZ specifies a formula for converting system clock
values to civil time values. That formula will be exactly the same a month
from today as it is today. Given identical inputs, it will yield identical
outputs next month as now.
BTW, I've been looking at the description of the STCKCONV macro
I see no mention of a "ZONE={LOCAL|GMT} parameter. Does it lack
one? Why? In fact the doc appears not to clarify whether the result
is LOCAL or GMT, nor how leap second corrections are performed.
RCF time?
-- gil
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