[tz] Issues about parts of Europe/Moscow in 1981/1982 --> Europe/Rostov-on-Don

[Stepan Golosunov]

On Tue, Feb 15, 2022 at 07:44:35PM +0100, Alois Treindl via tz wrote:
> correction: Rostov-on-Don is the larger city, with 1.1 million inhabitants

Well, the 3 largest cities in the affected area would be Nizhny
Novgorod (Gorky at the time), Kazan and Rostov-on-Don.  And which one
of them is larger changed with time.

Another caveat: I do not know whether they were on the same time in
1970.  They all were on Moscow+1 time and switched to Moscow time in
different years.

https://vladimir-l-s.livejournal.com/36842.html
contains 1969 map placing Gorky in Moscow+1 zone and discusses whether
this is an error on the map.  (Note «Территории, на которых
фактическое исчисление времени отличается от декретного на минус 1 час
(официально не утверждено)» wording in the legend of the map.)

> On 15.02.22 19:39, Alois Treindl via tz wrote:
> > 
> > To me it seems that an extra zone is needed, which starts with LMT util
> > 1919, later follows Moscow since 1930, but deviates from it between 1
> > October 1981 until 1 April 1982.
> > 
> > I suggest to call this zone Europe/Yaroslavl, because Yaroslavl with a
> > population of 608'000 seems to be largest city in the deviating area.
> > 
> >