The time zones in the law are defined by their offset from Coordinated Universal Time (UTC). Code, Title 15, Chapter 6, Subchapter IX - Standard Time. Time zones in the USA are defined in the U.S. Since 1967, the US Department of Transportation (DOT) has been responsible for governing time zones in the country. The US was divided into 4 standard time zones on November 18, 1883, and jurisdiction for the zones was given to the Interstate Commerce Commission (ICC). Time Zones Being Used in Dependencies of United States Offset They will become active again after the next clock change as Daylight Saving Time begins or ends. The above time zones are used during other parts of the year. Time Zones Not Currently Being Observed in United States Offset Note: Local time in these time zones changes when Daylight Saving Time begins and ends. In practice, this means that the local time in these time zones changes when DST begins and ends. For example, Eastern Time (ET) refers to Eastern Standard Time (EST) or Eastern Daylight Time (EDT), depending on which is currently in use. The time zones in the contiguous US are often referred to by their generic name, without making a difference between standard time and Daylight Saving Time designations. Generalized Time Zones in United States Time Zone Abbreviation & Name Since Howland Island and Baker Island constitute the world's westernmost landmasses in relation to the International Date Line, making them the last places on Earth where any date exists, they are sometimes assigned a theoretical 12th time zone called Anywhere on Earth (AoE). As neither Hawaii nor the 5 dependencies use Daylight Saving Time (DST), there are only 6 corresponding DST time zones. In addition, Alaska, Hawaii, and 5 US dependencies all have their own time zones. The contiguous US has 4 standard time zones. However, adding the time zones of 2 uninhabited US territories, Howland Island and Baker Island, brings the total count to 11 time zones. There are 9 time zones by law in the USA and its dependencies. Time Zones Currently Being Used in United States Offset Business Date to Date (exclude holidays).Situated at the southern edge of the State of New York is the New York City - the largest and the most populous city of the U.S. Located along the northern shore of the Potomac River in the federal district of Columbia is, Washington D.C. km, the United States is the world's 3rd largest country. Virgin Islands, Northern Mariana Islands, American Samoa, Midway Atoll, Baker Island, Howland Island, Jarvis Island, Johnston Atoll, Palmyra Atoll (incorporated territory), Kingman Reef, Wake Island and Navassa Island.Ĭovering a total area of 9,833,520 sq. The District of Columbia is the federal district in which the country's capital - Washington D.C. The states are divided into counties, which are further subdivided into municipalities. In alphabetical order, these states are: Alabama, Alaska, Arizona, Arkansas, California, Colorado, Connecticut, Delaware, District of Columbia, Florida, Georgia, Hawaii, Idaho, Illinois, Indiana, Iowa, Kansas, Kentucky, Louisiana, Maine, Maryland, Massachusetts, Michigan, Minnesota, Mississippi, Missouri, Montana, Nebraska, Nevada, New Hampshire, New Jersey, New Mexico, New York, North Carolina, North Dakota, Ohio, Oklahoma, Oregon, Pennsylvania, Rhode Island, South Carolina, South Dakota, Tennessee, Texas, Utah, Vermont, Virginia, Washington, West Virginia, Wisconsin, Wyoming The 50 states are the major administrative divisions of the country. The state's lowest point is at the Badwater Basin, Death Valley, California at -282ft (-86m). Denali (Mount Mckinley) in Alaska is the state's highest point wich rises to an elevation of 20,322ft (6,194m). Large lakes include the Great Lakes system consisting of Lake Superior, Lake Huron, Lake Michigan, Lake Erie, and Lake Ontario. Major rivers in the country include the Mississippi, the Missouri, the Colorado, the Arkansas, and the Columbia. Lower elevations are indicated throughout the southeast of the country, as well as along the Eastern Seaboard. Higher elevation is shown in brown identifying mountain ranges such as the Rocky Mountains, Sierra Nevada Mountains and the Appalachian Mountains. This physical map of the US shows the terrain of all 50 states of the USA. North-south, the longest distance in the 48 contiguous states region is 2,660 km. The greatest east-west distance in the 48 contiguous states of the country is 4,500 km. km while the remaining area is part of the US territories. The archipelago of Hawaii has an area of 28,311 sq. Of this area, the 48 contiguous states and the District of Columbia cover 8,080,470 sq. The United States (US) covers a total area of 9,833,520 sq.
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