IEVref:713-05-20ID:
Language:enStatus: Standard
Term: coordinated universal time
Synonym1: UTC (abbreviation)
[Preferred]
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Definition: timescale which forms the basis of a coordinated radio dissemination of standard frequencies and time signals. It corresponds exactly in rate with international atomic time, but differs from it by an integral number of seconds

NOTE 1 – Coordinated universal time is established by the International Bureau of Weights and Measures (BIPM) and the International Earth Rotation Service (IERS).

NOTE 2 – The UTC scale is adjusted by the insertion or deletion of seconds, so called positive or negative leap seconds, to ensure approximate agreement with UT1.


Publication date:1998-04
SourceITU-R Rec. 686 MOD
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Internal notes:2019-01-17: Editorial revision in accordance with the CC on C00043 to have a uniform spelling of “timescale” in all IEV entries. JGO
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