[tz] draft of change summary for next tz release PS

David Patte ₯ dpatte at relativedata.com
Wed Sep 18 16:41:13 UTC 2013

On 2013-09-18 10:50, Alois Treindl wrote:
> On 9/17/13 11:38 PM, Paul Eggert wrote:
>>      Some zones have been turned into links, when they differ from
>>      existing zones only in older data that was likely invented or that
>>      differs only in LMT or transition from LMT.
>>      ... Europe/Vaduz.
> I have already pointed out that it is wrong to link Europe/Vaduz with 
> Europe/Zurich
> Vaduz (Liechtenstein) is a different country, with a different 
> timezone history: no DST in 1941 and 1942. It should not be linked 
> with Zurich, Switzerland.
> I do not understand why the current zone for Vaduz, which is correct, 
> should be thrown away and be replaced with a link to an incorrect zone.
> This is against the Theory rules, as pre-1970 differences are supposed 
> to be only ignored for areas belonging to the same country.
> PS:
> If it is really true that from now on, you want to ingnore differences 
> between countries, if they apply only to pre-1970, when since 1970 the 
> two countries agree, you would also have to remove Europe/Paris and 
> link it with Europe/Berlin, because since 1970 these two zones have 
> not differed.
> The same appleies to MANY central European zones, which all agree 
> since 1970.
> It would be a horrible loss of correct history information in TZ.



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