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...

the United States observes daylight saving time (DST), the practice of setting the clock forward by one hour when there is longer daylight during the...

The history of standard time in the United States began November 18, 1883, when United States and Canadian railroads instituted standard time in time...

("fall back"). The Uniform Time Act of 1966 formalized the specification of time zones and the dates of DST observation in the United States. Prior to this...

The term "United States," when used in the geographical sense, refers to the contiguous United States (sometimes referred to as the Lower 48, including...

Date and time notation in the United States differs from that used in nearly all other countries. It is inherited from one historical branch of conventions...

In this list of presidents of the United States by age, the first table charts the age of each president of the United States at the time of presidential...

The history of the lands that became the United States began with the arrival of the first people in the Americas around 15,000 BC. Numerous indigenous...

The United States of America is a federal republic consisting of 50 states, a federal district (Washington, D.C., the capital city of the United States)...

In the United States, freedom of speech and expression is strongly protected from government restrictions by the First Amendment to the U.S. Constitution...

The president of the United States is the head of state and head of government of the United States, indirectly elected to a four-year term via the Electoral...

presidents of the United States by time in office. The listed number of days is calculated as the difference between dates, which counts the number of calendar...

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 chief justice of the United States is the chief judge of the Supreme Court of the United States and is the highest-ranking officer of the U.S. federal...

The United States of America (USA), commonly known as the United States (U.S.) or America, is a country primarily located in North America. It is a federal...

list of vice presidents of the United States by time in office. The basis of the list is the difference between dates. The length of a full four-year...

example (in the United States), from 8:00 p.m. to 11:00 p.m. (Eastern and Pacific Time) or 7:00 p.m. to 10:00 p.m. (Central and Mountain Time). In India...

in the United States are among the most advanced in the world, with public opinion and jurisprudence changing significantly since the late 1980s. In 1962...

The Third Amendment (Amendment III) to the United States Constitution places restrictions on the quartering of soldiers in private homes without the owner's...

The United States has a racially and ethnically diverse population. At the federal level, race and ethnicity have been categorized separately. The most...

In the United States, human rights consists of a series of rights which are legally protected by the Constitution of the United States (particularly by...

people have served on the Supreme Court of the United States, the highest judicial body in the United States, since it was established in 1789. Supreme Court...

In the United States, education is provided in public and private schools and by individuals through homeschooling. State governments set overall educational...

The United Kingdom uses Greenwich Mean Time (also known as Western European Time or UTC) and British Summer Time (UTC+01:00) (also known as Western European...

The president of the United States (POTUS) is the head of state and head of government of the United States of America. The president directs the executive...

The Northeastern United States (also referred to as the Northeast, the East Coast, or the American Northeast) is one of the four census regions defined...

In the politics of the United States, elections are held for government officials at the federal, state, and local levels. At the federal level, the nation's...

Senate and the House of Representatives—since its establishment as the bicameral legislature of the Federal government of the United States in 1789. Political...

county equivalents in the United States. The 50 states of the United States are divided into 3,007 political subdivisions of states called counties. Two...

Religion in the United States is both widespread and diverse, with higher reported levels of belief than other wealthy Western nations. Polls indicate...