Most of Tennessee operates on Central Standard Time (CST) during winter months, which is 6 hours behind Coordinated Universal Time (UTC-6). During daylight saving time, observed from the second Sunday in March to the first Sunday in November, Tennessee switches to Central Daylight Time (CDT), which is UTC-5.
The majority of Tennessee follows Central Time, including Nashville, Memphis, and Clarksville. However, eastern counties including Knoxville and Chattanooga observe Eastern Time (UTC-5/UTC-4). The timezone divide roughly follows county lines.
Tennessee spans two time zones. When it's 9 AM in Nashville (Central Time), it's 10 AM in Knoxville (Eastern Time). The music industry in Nashville coordinates with both New York (same time) and Los Angeles (two hours behind).