Daylight saving timeSeasonal change of clock settingsDaylight saving time regions: Northern Hemisphere summer Southern Hemisphere summer Formerly used daylight saving Never used daylight savingDaylight saving time (DST), also referred to as daylight savings time, daylight time (United States and Canada), or summer time (United Kingdom, European Union, and others), is the practice of advancing clocks to (in theory) make better use of the longer daylight available during summer by having darkness fall at a later clock time.
TennesseeU.S. stateState in the United StatesTennessee ( , locally ), officially the State of Tennessee, is a landlocked state in the Southeastern region of the United States. It borders Kentucky to the north, Virginia to the northeast, North Carolina to the east, Georgia, Alabama, and Mississippi to the south, Arkansas to the southwest, and Missouri to the northwest. Tennessee is the 36th-largest by area and the 15th-most populous of the 50 states.
Time zoneA time zone is an area which observes a uniform standard time for legal, commercial, and social purposes. Time zones tend to follow the boundaries between countries and their subdivisions instead of strictly following longitude, because it is convenient for areas in frequent communication to keep the same time. Each time zone is defined by a standard offset from Coordinated Universal Time (UTC).
75th meridian westLine of longitude 75° 75th meridian west (interactive map) The meridian 75° west of Greenwich is a line of longitude that extends from the North Pole across the Arctic Ocean, North America, the Atlantic Ocean, the Caribbean Sea, South America, the Pacific Ocean, the Southern Ocean, and Antarctica to the South Pole. The mean solar time of this meridian is the base for the Eastern Time Zone (UTC-5 during standard time).
KentuckyU.S. stateState in the United StatesKentucky (US: , UK: ), officially the Commonwealth of Kentucky, is a landlocked state in the Southeastern region of the United States. It borders Illinois, Indiana, and Ohio to the north, West Virginia to the northeast, Virginia to the east, Tennessee to the south, and Missouri to the west. Its northern border is defined by the Ohio River. Its capital is Frankfort and its most populous city is Louisville.
United StatesCountry primarily in North AmericaThe United States of America (USA), also known as the United States (U.S.) or America, is a country primarily located in North America. It is a federal republic consisting of 50 states and a federal capital district, Washington, D.C. The 48 contiguous states border Canada to the north and Mexico to the south, with the semi-exclave of Alaska in the northwest and the archipelago of Hawaii in the Pacific Ocean.
CanadaCanada is a country in North America. Its ten provinces and three territories extend from the Atlantic Ocean to the Pacific Ocean and northward into the Arctic Ocean, making it the second-largest country by total area, with the longest coastline of any country. Its border with the United States is the longest international land border. The country is characterized by a wide range of both meteorologic and geological regions.
Royal Observatory, GreenwichThe Royal Observatory, Greenwich (ROG; known as the Old Royal Observatory from 1957 to 1998, when the working Royal Greenwich Observatory, RGO, temporarily moved south from Greenwich to Herstmonceux) is an observatory situated on a hill in Greenwich Park in south east London, overlooking the River Thames to the north.
CaribbeanIslands and coastal region surrounded by the Caribbean SeaThe Caribbean is a geo-political region in the middle of the Americas centered around the Caribbean Sea in the North Atlantic Ocean, mostly overlapping with the West Indies. Bordered by North America to the north and also the west through Central America, and South America to the south, it comprises numerous islands, cays, islets, reefs, and banks.
Quintana RooQuintana Roo, officially the Free and Sovereign State of Quintana Roo, is one of the 31 states which, along with Mexico City, constitute the 32 federal entities of Mexico. It is divided into 11 municipalities, and its capital city is Chetumal.
MexicoCountry in North AmericaMexico, officially the United Mexican States, is a country in North America. It is the northernmost country in Latin America, bordering the United States of America to the north and Guatemala and Belize to the southeast, while having maritime boundaries with the Pacific Ocean to the west, the Caribbean Sea to the southeast, and the Gulf of Mexico to the east.
U.S. stateConstituent polity of the United StatesIn the United States, a state is a constituent political entity, of which there are 50. Bound together in a political union, each state holds governmental jurisdiction over a separate and defined geographic territory where it shares its sovereignty with the federal government. Due to this shared sovereignty, Americans are citizens both of the federal republic and of the state in which they reside.*As an Amazon Associate I earn from qualifying purchases.