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This map was made by combining version 2023d with OpenStreetMap data, using open source software. [ 1 ] This is a list of time zones from release 2025a of the tz database .
Eastern Daylight Time (EDT) is four hours behind Coordinated Universal Time (UTC−04:00). Observed during daylight saving time (spring/summer/early autumn in the United States and Canada). On the second Sunday in March, at 2:00 a.m. EST, clocks are advanced to 3:00 a.m. EDT, creating a 23-hour day.
About 80% of the U.S. population reside in the Central and Eastern time zones, where the nation's largest city (and the main anchor of television programming) New York is located. [8] A notable exception to live telecasts in sports was the Olympic Games. Although it has provided live coverage of events during other dayparts via platforms such ...
These are rule lines for the standard United States daylight saving time rules, rule lines for the daylight saving time rules in effect in the US Eastern Time Zone (called "NYC" as New York City is the city representing that zone) in some years, and zone lines for the America/New_York timezone, as of release version tzdata2011n of the time zone ...
Map of U.S. time zones with new CST and EST areas displayed. Some U.S. time zones, such as the Samoa Time Zone, are not on this map. This is a list of the time offsets by U.S. states, federal district, and territories. For more about the time zones of the U.S. see time in the United States. Most states are entirely contained within one time zone.
Principal cities: New York, Toronto, Havana, Lima, Bogotá, Kingston, Quito. Bahamas; Brazil [26] Acre; Amazonas (13 western municipalities, approximately marked by a line between Tabatinga and Porto Acre) Canada (Eastern Time Zone) Nunavut [17] East of 85th meridian west, and Southampton Island and adjoining islands; Ontario. East of 90° West ...
EDT: Eastern Daylight Time (North America) UTC−04:00: EEST: Eastern European Summer Time: UTC+03:00: EET: Eastern European Time: UTC+02:00: EGST: Eastern Greenland Summer Time: UTC+00:00: EGT: Eastern Greenland Time: UTC−01:00: EST: Eastern Standard Time (North America) UTC−05:00: ET (EST/EDT) Eastern Time (North America) UTC−05:00 ...
Operators of the new railroad lines needed a new time plan that would offer a uniform train schedule for departures and arrivals. Four standard time zones for the continental United States were introduced at noon on November 18, 1883, in Chicago, Illinois, when the telegraph lines transmitted time signals to all major cities. [4] [5]