Indiana: All of Indiana observes Eastern Time except for six northwestern counties in the Chicago metropolitan area and six southern counties in the Evansville metropolitan area.Either way the Dry Tortugas lie near the boundary of the two time zones. Some sources claim the Eastern Time Zone, while others claim Central Time Zone. There is some discrepancy whether or not the Dry Tortugas are in the Eastern or Central Time Zone. As the Eastern-Central zone boundary approaches the Gulf of Mexico, it follows the Bay/Gulf county line. Florida: All of Florida is in the Eastern Time zone except for the portion of the Florida panhandle west of the Apalachicola River.However, a handful of communities unofficially observe Eastern Time because they are part of the Columbus, Georgia metropolitan area - Phenix City, Smiths Station, Lanett, and Valley. Alabama: The entire state is officially in the Central Time Zone.These six states are split between Eastern and Central time: The exact specification for the location of time zones and the dividing line between zones is set forth in the Code of Federal Regulations at 49 CFR 71. In the United States, 17 states and the District of Columbia are entirely located within the Eastern Time zone, while another six are split between the Eastern and Central time zones. In Canada, the time changes as it does in the U.S. The local time changes at 02:00 EST to 03:00 EDT on the second Sunday in March and returns at 02:00 EDT to 01:00 EST on the first Sunday in November. The Energy Policy Act of 2005 extended daylight saving time in the U.S. The act was amended to make the first Sunday in April the beginning of EDT as of 1987. EST would be re-instituted on the last Sunday in October. The 1966 Uniform Time Act in the USA meant that EDT was instituted on the last Sunday in April, starting in 1966, throughout most of the USA. Specifically, it is Eastern Standard Time ( EST) when observing standard time (winter), and Eastern Daylight Time ( EDT) when observing daylight saving time (summer). In the United States and Canada, this time zone is generally called Eastern Time ( ET). The clock time in this zone is based on the mean solar time of the 75th meridian west of the Greenwich Observatory. Its UTC time offset is −5 hrs ( UTC−05) during standard time and −4 hrs ( UTC−04) during daylight saving time. The Eastern Time Zone ( ET) of the Western Hemisphere – also known as North American Eastern Standard Time ( NAEST) – is a time zone that falls mostly along the east coast of North America. Metronome, a public art installation showing the time in New York City This article is about the time zone with daylight change in North America.
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