UTC

UTC stands for Coordinated Universal Time.

The International Telecommunication Union (ITU) and the International Astronomical Union wished to minimize confusion and designated one single abbreviation for use in all languages.

''Coordinated Universal Time (abbreviated to UTC) is the primary time standard by which the world regulates clocks and time. It is within about 1 second of mean solar time at 0° longitude; it does not observe daylight saving time. For most purposes, UTC is considered interchangeable with Greenwich Mean Time (GMT), but GMT is no longer precisely defined by the scientific community.''