UTC definition by Webster's New World
UTC definition by American Heritage Dictionary
utc - Computer Definition
Also known as Zulu (Z) Time.The International Telecommunications Union (ITU) struggled to develop an initialization for a universal time coordinated among all nations of the Earth. English speakers preferred CUT (Coordinated Universal Time). French speakers preferred TUC (Temps Universel Coordonn
(Coordinated Universal Time, Temps Universel CoordonnÃ©) The international time standard (formerly Greenwich Mean Time, or GMT). Zero hours UTC is midnight in Greenwich, England, which is located at 0 degrees longitude. Everything east of Greenwich (up to 180 degrees) is later in time; everything west is earlier. There are 42 time authorities around the world that are constantly synchronizing with each other. In the U.S., the time authorities are located at the U.S. Naval Observatory (USNO) and the National Institute of Standards & Technology (NIST). See NTP.