Why is Tennessee in two different time zones? Before 1947, all of Tennessee was part of the Central time zone. Cities in the eastern part of the state, like Knoxville and Chattanooga, petitioned ...

Tennessee's two time zones, it turns out, are not that unusual. In all, 15 U.S. states have more than one time zone.

Over 30 cities in East Tennessee have their time zone changed to Eastern Standard Time. Suggest a Correction. Suggest a Correction. Your name (required) Your email (required) ...