[tz] Europe/Volgograd change from UTC+3 to UTC+4 from 28oct2018

[Paul Eggert]

I found a recent news item about the Volgograd change. The article says the 
change passed the State Duma in the first reading, and suggests that momentum is 
behind a change (a referendum passed 59-40 in March).

ГД поддержала законопроект о переходе Волгоградской области в другой часовой 
пояс. Vmeste-RF. 2018-09-11 14:09 +03. 
http://vmeste-rf.tv/news/the-state-duma-supported-the-bill-on-the-transition-of-the-volgograd-region-in-a-different-time-zone/