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In the United States, time is divided into nine standard time zones covering the states, territories and other US possessions, with most of the country observing daylight saving time (DST) for approximately the spring, summer, and fall months. The time zone boundaries and DST observance are regulated by the Department of Transportation, but no ...
USA.gov is the official web portal of the United States federal government. It is designed to improve the public's interaction with the United States government by quickly directing website visitors to the services or information they are seeking, and by inviting the public to share ideas to improve government.
The federal government of the United States ( U.S. federal government or U.S. government) [a] is the national government of the United States, a federal republic located primarily in North America, composed of 50 states, five major self-governing territories, several island possessions, and the federal district and national capital of ...
The Uniform Time Act of 1966 established the system of uniform daylight saving time throughout the US. [1] In the U.S., daylight saving time starts on the second Sunday in March and ends on the first Sunday in November, with the time changes taking place at 2:00 a.m. local time. With a mnemonic word play referring to seasons, clocks "spring ...
Independence Day. Labor Day. Columbus Day. Veterans Day. Thanksgiving Day. Christmas Day. National holidays in the United States are 11 calendar dates designated by the U.S. federal government as official holidays. On these days non-essential national offices are closed although the employees receive pay. [1]
nist.gov. The National Institute of Standards and Technology ( NIST) is an agency of the United States Department of Commerce whose mission is to promote American innovation and industrial competitiveness. NIST's activities are organized into physical science laboratory programs that include nanoscale science and technology, engineering ...
The evolution of United States standard time zone boundaries from 1919 to 2024 in five-year increments. Plaque in Chicago marking the creation of the four time zones of the continental US in 1883 Colorized 1913 time zone map of the United States, showing boundaries very different from today Map of U.S. time zones during between April 2, 2006, and March 11, 2007.
t. e. The United States order of precedence is an advisory document maintained by the Ceremonials Division of the Office of the Chief of Protocol of the United States which lists the ceremonial order, or relative preeminence, for domestic and foreign government officials (military and civilian) at diplomatic, ceremonial, and social events ...