Hello All, In source file https://github.com/eggert/tz/blob/master/europe please change city name to correspondent standards ISO 3166-2:UA and UNGEGN. We have to write bug reports to software developers, because time zone entry names are incorrect. Incorrect name of time zone entries can't be used for our practical needs. ------------- str: 3663 from 'Zone Europe/Kiev' to 'Zone Europe/Kyiv' # ISO city code is UA-30 (https://www.iso.org/obp/ui/#iso:code:3166:UA ) ------------- str: 3691 from 'Zone Europe/Zaporozhye' to 'Zone Europe/Zaporizhzhia' ------------- Rules transliteraion from Ukranian to Latin see on site http://zakon4.rada.gov.ua/laws/show/55-2010-%D0%BF On-line service transliteration: https://dmsu.gov.ua/transliteration.html Oleksii. Kyiv.