<P> The boundaries of the Eastern Time Zone have moved westward since the Interstate Commerce Commission took over time - zone management from railroads in 1938 . For example , the easternmost and northernmost counties in Kentucky were added to the zone in the 1940s , and in 1961 most of the state went Eastern . In 2000 , Wayne County , on the Tennessee border , switched from Central to Eastern . In March 2018 , the Florida Legislature passed a bill requesting authorization from Congress for year - round daylight savings time , which would effectively put Florida on Atlantic Standard Time year - round . </P>
<P> The boundaries of the Eastern Time Zone have moved westward since the Interstate Commerce Commission took over time - zone management from railroads in 1938 . For example , the easternmost and northernmost counties in Kentucky were added to the zone in the 1940s , and in 1961 most of the state went Eastern . In 2000 , Wayne County , on the Tennessee border , switched from Central to Eastern . In March 2018 , the Florida Legislature passed a bill requesting authorization from Congress for year - round daylight savings time , which would effectively put Florida on Atlantic Standard Time year - round . </P>
where does the eastern time zone change in tennessee
where does the eastern time zone change in tennessee
Wayne County
Wayne County