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The Eastern Time Zone (ET) is a time zone encompassing part or all of 23 states in the eastern part of the United States, parts of eastern Canada, and the state of Quintana Roo in Mexico. Eastern Standard Time ( EST ) is five hours behind Coordinated Universal Time ( UTC−05:00 ).
The U.S. Naval Observatory provides public time service via 26 NTP [33] servers on the public Internet, [36] and via telephone voice announcements: [37] +1 202 762-1401 (Washington, DC) +1 202 762-1069 (Washington, DC) +1 719 567-6742 (Colorado Springs, CO) The voice of actor Fred Covington (1928–1993) [38] has been announcing the USNO time ...
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.
Before the adoption of four standard time zones for the continental United States, many towns and cities set their clocks to noon when the sun passed their local meridian, pre-corrected for the equation of time on the date of observation, to form local mean solar time. Noon occurred at different times but time differences between distant ...
The military time zones are a standardized, uniform set of time zones for expressing time across different regions of the world, named after the NATO phonetic alphabet. The Zulu time zone (Z) is equivalent to Coordinated Universal Time (UTC) and is often referred to as the military time zone.
The red area is the District of Columbia, served by area codes 202 and 771.. Area codes 202 and 771 are telephone area codes in the North American Numbering Plan (NANP) for Washington, D.C.
The master atomic clock ensemble at the U.S. Naval Observatory in Washington D.C., which provides the time standard for the U.S. Department of Defense. [1] The rack mounted units in the background are caesium beam clocks. The black units in the foreground are hydrogen maser standards.
The court is assisted by retired judges who have been recommended and approved as senior judges. Despite being the District's local appellate court, judges are appointed by the U.S. president and confirmed by the U.S. Senate for 15-year terms. The DC Courts are a federal agency and do not answer to the District government. [9]