[tz] Backzone entry for Europe/Vaduz

[Alois Treindl]

I must correct myself.

Europe/Vaduz in backzone has to be amended with DST 1941/42 .
It cannot be dropped, because it still differs from Europe/Zurich before 
1894, as Vaduz did not follow Bern mean time before it switched to 
Central European time.

On 04.07.19 17:04, Michael H Deckers wrote:
>
>    On 2019-07-04 14:11, Alois Treindl sent newspaper excerpts:
>
>
>
>> In the year 2013 I had contributed information that Swiss neighbor 
>> country Liechtenstein, represented by Europe/Vaduz in file backzone, 
>> did not have daylight saving time in 1941 and 1942, while 
>> Switzerland, represented by Europe/Zurich, did have it.
>>
>> A colleague sent me a follow-up question today, which cause me to 
>> reconsider the question.
>>
>> I was able to access the online archive of the Vaduz paper Vaterland 
>> for free - they offer a special summer deal.
>>
>> I could confirm frm the paper that Liechtenstein did in fact follow 
>> the same DST in 1941 and 1942 as Switzerland did.
>>
>> The entry Europe/Vaduz in the file backzone can be removed, so that 
>> the link Europe/Zurich Europe/Vaduz remains effective even for those 
>> who, like me, compile TZ with backzone included.
>>
>> I attach a few newspaper clippings, not translated.
>>
>
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