It might be easier to acknowledge the west/east Berlin split than to figure out which single rule is better. The problem I see is that in reality the presnt day Berlin and the historic Berlin did not exist for 40 years. I am not sure this can be ignored. ++PLS ----- Original Message ----- From: Markus Scherer <markus.icu@gmail.com> To: tz@lecserver.nci.nih.gov <tz@lecserver.nci.nih.gov> Cc: Sebastian Wangnick <sebastian.nospam01@wangnick.de>; tz@lecserver.nci.nih.gov <tz@lecserver.nci.nih.gov> Sent: Sun Feb 03 15:58:24 2008 Subject: Re: FW: Corrections to historic German timezone information On Jan 28, 2008 3:59 PM, Paul Eggert <eggert@cs.ucla.edu> wrote:

Because of this rule, the 1945 divergence doesn't justify having two separate entries for Berlin. However, we should have the correct entry for Berlin, which raises the question: where is the commonly accepted center of Berlin? If the center is in the former Soviet zone, tz's Europe/Berlin should use what is in the proposed Europe/BerlinEast zone. If Berlin's center is in the former west-Berlin zone, Europe/Berlin should change to match what is in the proposed Europe/Berlin zone.

I don't quite understand this. I do understand that it's overkill from the perspective of the TZ maintainers to precisely distinguish pre-1970 transitions, but it seems like the question of which part of Berlin to use should not depend as much on where the city center is but on the political continuity. markus -- Opinions expressed here may not reflect my company's positions unless otherwise noted.