[tz] proposed changes: past Altai/Tomsk time zone shifts

Tobias Conradi tobias.conradi at gmail.com
Fri May 4 16:43:02 UTC 2012

> 1) Back then another contributor to the TZ list looked up which districts
> (ulusy) of Sakha (Jakutija) were in which timezone. I merely incorporated
> his research into my report on all Russian timezones. I tried to give him
> credits, but his name was somehow lost in the comments in the TZ file.
> I forgot, I have lost the emails, if reference is needed: please look it up
> yourself in the TZ mail archive.
Thanks a lot for that clarification. That answers the question what
your source was.

> 2) Transliteration scheme: back then I chose for the Chemical Abstracts
> transliteration which had 2 advantages: (a) two-way, (b) Posix 1 compatible.
> Two-way means: the transliterated text can be transformed back into Russian
> again. With schemes like GOST 7.79 (ISO 9) and several other schemes, only
> one-way transliteration is possible.
http://en.wikipedia.org/wiki/ISO_9 is two way, isn't it?

> 3) Districts in Sakha are in this republic called ulusy (nominative case;
> singular: ulus), in several other Russian publications they are called
> rajony (singular: rajon). The law (see my point 5) gives both terms. I think
> "districts" is close enough for a text comment in English.
улус (ulus) not found on that page

> 4) With respect to the transliteration scheme in the comments: what are we
> talking about?
> At any rate not about any vital part of the TZ software. I wouldn't give it
> much more attention, if I may suggest.
If you open the europe file and search for certain entities it helps
they are spelled one way throughout the document. Contributors to
zones using different romanizations are in a disadvantage compared to
e.g. contributors to US zones.

> 5) The law (http://www.garant.ru/hotlaw/federal/346568/) states very clearly
> which Sakha districts are in which timezone. Please check this for current
> times in the TZ database, if not done already.
Done, at various instances, earliest I found was by Alexander Krivenyshev
Timeline compiled yesterday

> There is however one not so clear part, namely the Newsiberian Islands. From
> memory I recall that one TZ contributor said they are administered from the
> central government of the republic. Heaving read several texts and looked at
> a couple of Russian maps, I'm inclined to believe the islands are part of
> the Bulunskij Ulus. Regretfully I have no definitive reference for you.
2011-09-20 Tobias Conradi reports that the New Siberian Islands
are maybe not part of the Ulus-system

> Then
> again: how many people actually live in this reserve?
> So, what is the effect
> if we put it into the wrong timezone?
The database would contain a bug according to tzcode2011i/Theory:

----- Scope of the tz database -----

The tz database attempts to record the history and predicted future of
all computer-based clocks that track civil time.  To represent this
data, the world is partitioned into regions whose clocks all agree
about time stamps that occur after the somewhat-arbitrary cutoff point
of the POSIX Epoch (1970-01-01 00:00:00 UTC).

Tobias Conradi
Rheinsberger Str. 18
10115 Berlin


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