Note that while “Eastern Europe” has firm connotations with countries of which some are known for having corrupt autocracies, booming shady businesses, and organized crime and cybercrime gangs in varying proportions, the time zone mentioned also covers Finland, from which the other author is supposed to be.
Eastern Europe, suggest the timestamp / holiday analysts. https://rheaeve.substack.com/p/xz-backdoor-times-damned-time...