You need to upgrade your Flash PlayerThis is replaced by the Flash content. Daylight-Saving Time is not in effect. The Eastern part of Tennessee is in the Eastern Time Zone in the United States. Eastern Standard Time (EST) is 5 hours behind Greenwich Mean Time (GMT-5). Whilst the Western part of Tennessee is in the Central Time Zone in the United States. Central Standard Time (CST) is 6 hours behind Greenwich Mean Time (GMT-6). Like most states in the U.S., Daylight Saving Time is observed in Tennessee, where the time is shifted forward by 1 hour, resulting in a 4 hours and 5 hours difference behind GMT for the Eastern and Western part of Tennessee respectively.After the Summer months the time is shifted back by 1 hour resulting in the normal time to GMT. Daylight Saving Time starts on 3/11/2012 2:00:00 AM local standard time.Daylight Saving Time ends on 11/4/2012 2:00:00 AM local daylight time.