[tz] question about mktime_tzname()

[Zefram]

Arthur David Olson wrote:
>The philosophical question: for such environment variables, in what year
>should application of daylight saving start (or should it apply to all
>years, no matter how far in the past)?

To all years, surely.  (That's what I implemented in my Perl module
that parses these.)  The nature of a SysV-style setting doesn't place
any restriction on its applicability.

-zefram