![]() ![]() 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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