UNIVERSAL TIME


Meaning of UNIVERSAL TIME in English

Mean (solar) time of the Greenwich meridian (0k longitude).

Universal Time replaced the designation Greenwich Mean Time in 1928; since 1972 it has been based on international atomic time, a uniform time derived from the frequences of certain atomic transitions and measured by an atomic clock. For most purposes, it is now identical to Greenwich Mean Time.

Britannica English dictionary.      Английский словарь Британика.