Time in Tennessee

Time zones in North America

Time in Tennessee, as in all U.S. states, is regulated by the United States Department of Transportation.

65 of the 95 counties in the state of Tennessee, comprising about 73 percent of its total area, lie in the Central Time Zone. This encompasses the entirety of the western and middle grand divisions plus three counties in East Tennessee, while the remaining 30 counties lie in the Eastern Time Zone.[1][2]

Map of time zones in Tennesseee

All counties observe Daylight Saving Time.

## Time zone boundary areas

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Map of time zones following county lines in Tennesseee

### Central boundary counties

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* Bledsoe County (East)
* Cumberland County (East)
* Fentress County (Middle)
* Marion County (East)
* Sequatchie County (Middle)
* Pickett County (Middle)

### Eastern boundary counties

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* Hamilton County
* Morgan County
* Rhea County
* Roane County
* Scott County[3]

## IANA time zone database

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The IANA time zone database identifier for Tennessee is America/New_York for the Eastern Time Zone portion and America/Chicago for the Central Time Zone portion.[4]

## See also

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* Time in the United States
* List of counties in Tennessee

## References

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1. ^ 65 counties, totaling 30,796 sq. mi. are in CT, while 30 counties, totaling 11,347 sq. mi. are in ET, based on individual Wikipedia county articles as of 2012-05-21.
2. ^ “Current time in Tennessee - Tennessee Time By County”. TimeTemperature.com. Retrieved 22 May 2013.
3. ^ Rand McNally (2016). "Tennessee" (Map). The Road Atlas (2016 Walmart ed.). 1 in≈30 mi. Chicago: Rand McNally. pp. 94–95\. ISBN 0-528-00626-6.
4. ^ "Time Zone Database". www.iana.org.

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Time in the United States

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Federal district|

Washington, D.C.

Territories|

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Legislation|

* Standard Time Act of 1918
* Uniform Time Act of 1966
* Emergency Daylight Saving Time Energy Conservation Act (1974)
* Energy Policy Act of 2005
* Sunshine Protection Act

* Daylight saving time
* History
* Permanent time observation

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