There’s definitely inertia but I think it’s also that the US/ names match official usage: nobody, not even residents, says the time zone is New York because the official name is Eastern time.

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cpburns2009 3 days ago | parent [-]

Exactly this. I still don't know if there's a technical difference between America/New_York, America/Detroit, or America/Indianapolis.

	▲	umanwizard 3 days ago \| parent [-]
		America/Detroit is different from America/New_York on times before 1915 (when Detroit switched from Central to Eastern Time).