Hello. Currently, in your timezone files Ukrainian capital is spelled incorrectly. Kyiv is the correct spelling as decided by UNCSGN (United Nations Conferences on the Standardization of Geographical Names) and UNGEGN (United Nations Group of Experts on Geographical Names)."Kiev" is transliteration from Russian and as Ukraine, which is an independent country, has only one official language, which is Ukrainian, using transliteration from Russian is offending and incorrect. I saw in your files that you understand that Kyiv is correct spelling and you reason that Kiev is more common, alas that argument is wrong. It's only more common because it's been mistakingly used for a long period of time. Ukrainian government is currently running a campaign called Kyiv Not Kiev to raise awareness of international community and it already has results, many companies, like Microsoft, BBC, Google, Facebook and others have already fixed their spelling. I suggest IANA follows this example and fixes this incorrect spelling. Regards, Igor