There are a few kinds of entry in the tz database. Europe/Kiev is now a Link entry to Europe/Kyiv which is a Canonical entry. Europe/Kiev used to be a canonical

There are a few kinds of entry in the tz database. Europe/Kiev is now a Link entry to Europe/Kyiv which is a Canonical entry. Europe/Kiev used to be a canonical entry. What's interesting is there's a lot of thoughtful commentary about changing the name and handling the annexation of Crimea long before Russia invaded Ukraine For example: https://data.iana.org/time-zones/tzdb-2020d/europe https://data.iana.org/time-zones/tzdb-2020d/europe (search for Kiev for the specific part; it's a very long file)