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United States · America/New_York
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New York keeps Eastern Time: Eastern Standard Time (EST, UTC−5) in winter and Eastern Daylight Time (EDT, UTC−4) in summer. The same clock covers the whole East Coast of the United States as well as Toronto. It is the time quoted for the New York Stock Exchange, which trades from 09:30 to 16:00, and for most national television schedules.
Clocks go forward at 02:00 on the second Sunday of March and back at 02:00 on the first Sunday of November, a schedule in force since 2007. Europe changes on different Sundays. The usual five-hour gap to London therefore shrinks to four hours for two or three weeks in March and for one week around the end of October, which regularly catches out transatlantic meetings.
Until 18 November 1883 every American city kept its own solar time, and railway timetables had to juggle dozens of them. On that Sunday the railroads switched to standard zones. In New York, clocks were stopped for about four minutes to fall in line with the 75th meridian, so noon arrived twice. Congress wrote the zones into law in 1918.
Dates reflect the rules in force when this page was last updated. Governments can change them at short notice.
Use the actual meeting date. Seasonal clock changes can alter the time difference.
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