Time zone confusion and implementation hints
eggert at CS.UCLA.EDU
Fri Jul 2 15:55:21 UTC 2010
On 07/02/10 07:18, Yves Goergen wrote:
> When a zone defines that a rule set is valid until before 1990 Sep 3 at
> 2:00w or 2:00s, how exactly am I supposed to find out when that is?
You use the rules that were in effect just before the change.
It wouldn't make sense any other way, surely.
> I don't
> understand the cryptic original code (C) of the tz distribution.
Hey, it's not _that_ cryptic! But I'm afraid that it's the
canonical version. (Perhaps you can find an old, doddering
C expert nearby who can explain it to you. :-)
More information about the tz