Eastern Time Zone in the context of "Solar eclipse of August 21, 2017"

STS-124 was the 35th mission of Space Shuttle Discovery. It went to the International Space Station on this mission. Discovery launched on May 31, 2008, at 17:02 EDT, moved from an earlier scheduled launch date of May 25, 2008, and landed safely at the Kennedy Space Center's Shuttle Landing Facility, at 11:15 EDT on June 14, 2008. Its objective was to deliver the largest module of the space station – Kibō, the Japanese Experiment Module pressurized section. The mission is also referred to as ISS-1J by the ISS program.

American Airlines Flight 77 was a scheduled domestic transcontinental passenger flight from Dulles International Airport in Northern Virginia to Los Angeles International Airport in Los Angeles. The Boeing 757-200 aircraft serving the flight was hijacked by five al-Qaeda terrorists on the morning of September 11, 2001, as part of the September 11 attacks. The hijacked airliner was deliberately crashed into the Pentagon in Arlington County, Virginia, killing all 64 aboard and another 125 in the building.

Flight 77 became airborne at 08:20 ET. Thirty-one minutes after takeoff, the attackers stormed the cockpit and forced the passengers and crew to the rear of the cabin, threatening the hostages but initially sparing all of them. Lead hijacker Hani Hanjour assumed control of the aircraft after having undergone extensive flight training as part of his preparation for the attack. In the meantime, two people aboard discreetly made phone calls to family members and relayed information on the situation without the knowledge of their assailants.

Prime time (sometimes spelled primetime), or peak time, is the block of broadcast programming taking place during the middle of the evening for television shows. It is mostly targeted towards adults (and sometimes families). It is used by the major television networks to broadcast their season's nightly programming. The term prime-time is often defined in terms of a fixed time period—for 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 and some Middle Eastern countries, prime time consists of programmes that are aired on television between 8:00 p.m. and 10:00 p.m. local time.

In broadcast programming, dayparting is the practice of dividing the broadcast day into several parts, in which a different type of radio programming or television show appropriate for that time period is aired. Television programs are most often geared toward a particular demography, and what the target audience typically engages in at that time.

On January 28, 1986, Space Shuttle Challenger broke apart 73 seconds into its flight, killing all seven crew members aboard. The spacecraft disintegrated 46,000 feet (14 km) above the Atlantic Ocean, off the coast of Cape Canaveral, Florida, at 16:39:13 UTC (11:39:13 a.m. EST, local time at the launch site). It was the first fatal accident involving an American spacecraft while in flight.

The mission, designated STS-51-L, was the 10th flight for the orbiter and the 25th flight of the Space Shuttle fleet. The crew was scheduled to deploy a commercial communications satellite and study Halley's Comet while they were in orbit, in addition to taking schoolteacher Christa McAuliffe into space under the Teacher in Space Project. The latter task resulted in a higher-than-usual media interest in and coverage of the mission; the launch and subsequent disaster were seen live in many schools across the United States.

The Florida panhandle (also known as West Florida and Northwest Florida) is the northwestern part of the U.S. state of Florida. It is a salient roughly 200 miles (320 km) long, bordered by Alabama on the west and north, Georgia on the north, and the Gulf of Mexico to the south. Its eastern boundary is arbitrarily defined. It is defined by its southern culture and rural demographics in contrast to urbanized central and southern Florida, as well as closer cultural links to Alabama and Georgia. Its major communities include Pensacola, Navarre, Destin, Panama City Beach, and Tallahassee.

As is the case with the other eight U.S. states that have panhandles, the geographic meaning of the term is inexact and elastic. References to the Florida panhandle always include the ten counties west of the Apalachicola River, a natural geographic boundary, which was the historic dividing line between the British colonies of West Florida and East Florida. These western counties also lie in the Central Time Zone (with the exception of Gulf County, which is divided between the Eastern and Central Time zones), while the rest of the state is in the Eastern Time Zone. References to the panhandle may also include some or all of eleven counties immediately east of the Apalachicola known as the Big Bend region, along the curve of Apalachee Bay.

Between seventy-three and seventy-nine days after the presidential election, the president-elect of the United States is inaugurated as president by taking the presidential oath of office. The inauguration takes place for each new presidential term, even if the president is continuing in office for another term.

The first inauguration of George Washington took place on April 30, 1789. Subsequent public inaugurations from 1793 until 1933 were held on March 4, with the exceptions of those in 1821, 1849, 1877, and 1917, when March 4 fell on a Sunday, thus the public inauguration ceremony took place on Monday, March 5. Since 1937, it has taken place at noon Eastern time on January 20, the first day of the new term, except in 1957, 1985, and 2013, when January 20 fell on a Sunday. In those years, the presidential oath of office was administered on that day privately and then again in a public ceremony the next day, on Monday, January 21. The most recent presidential inauguration was held on January 20, 2025, when Donald Trump reassumed office.

East Tennessee is one of the three Grand Divisions of Tennessee defined in state law. Geographically and socioculturally distinct, it comprises approximately the eastern third of the U.S. state of Tennessee. East Tennessee consists of 33 counties, 30 located within the Eastern Time Zone and three counties in the Central Time Zone, namely Bledsoe, Cumberland, and Marion. East Tennessee is entirely located within the Appalachian Mountains, although the landforms range from densely forested 6,000-foot (1,800 m) mountains to broad river valleys. The region contains the major cities of Knoxville and Chattanooga, Tennessee's third and fourth largest cities, respectively, and the Tri-Cities, the state's sixth largest population center.

During the American Civil War, many East Tennesseans remained loyal to the Union even as the state seceded and joined the Confederacy. Early in the war, Unionist delegates unsuccessfully attempted to split East Tennessee into a separate state that would remain as part of the Union. After the war, a number of industrial operations were established in cities in the region. The Tennessee Valley Authority (TVA), created by Congress during the Great Depression in the 1930s, spurred economic development and helped to modernize the region's economy and society. The TVA would become the nation's largest public utility provider. Today, the TVA's administrative operations are headquartered in Knoxville, and its power operations are based in Chattanooga. Oak Ridge was the site of the world's first successful uranium enrichment operations, which were used to construct the world's first atomic bombs, two of which were dropped on Imperial Japan at the end of World War II. The Appalachian Regional Commission further transformed the region in the late 20th century.

Ontonagon County (/ˌɒntəˈnɑːɡən/ ON-tə-NAH-gən) is a county in the Upper Peninsula of the U.S. state of Michigan. As of the 2020 census, the population was 5,816, making it Michigan's third-least populous county. The county seat is Ontonagon. The county was set off in 1843, and organized in 1848. Its territory had been organized as part of Chippewa and Mackinac counties. With increasing population in the area, more counties were organized. After Ontonagon was organized, it was split to create Gogebic County. It is also the westernmost county in the United States that lies within the Eastern Time Zone.