That's a valid scenario where time zone identifiers don't work well, but what's the alternative? A fixed offset is guaranteed to be wrong on DST switch, and tha

That's a valid scenario where time zone identifiers don't work well, but what's the alternative? A fixed offset is guaranteed to be wrong on DST switch, and that happens a lot more often than time zones splintering. I guess GPS coordinates would be more accurate, but then you have privacy concerns. Fun fact: time zones are named after cities for robustness: Country names are not used in this scheme, primarily because they would not be robust, owing to frequent political and boundary changes. The names of large cities tend to be more permanent. Usually the most populous city in a region is chosen to represent the entire time zone, although another city may be selected if it is more widely known, and another location, including a location other than a city, may be used if it results in a less ambiguous name. https://en.wikipedia.org/wiki/Tz_database#Location https://en.wikipedia.org/wiki/Tz_database#Location