coordinated universal time


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co·or·di·nat·ed universal time

(kō-ôr′dn-ā′tĭd)
n. Abbr. UTC
An international time standard calculated by atomic clock and incorporating occasional leap seconds to compensate for changes in the rotation of the earth. Coordinated universal time serves as the basis for standard time around the world.
American Heritage® Dictionary of the English Language, Fifth Edition. Copyright © 2016 by Houghton Mifflin Harcourt Publishing Company. Published by Houghton Mifflin Harcourt Publishing Company. All rights reserved.

coor′dinated univer′sal time`


n.
(usu. caps.) standard time equivalent to Greenwich Time but corrected by atomic clocks to match the earth's rotation.
Random House Kernerman Webster's College Dictionary, © 2010 K Dictionaries Ltd. Copyright 2005, 1997, 1991 by Random House, Inc. All rights reserved.

Coordinated Universal Time

An atomic time scale that is the basis for broadcast time signals. Coordinated Universal Time (UTC) differs from International Atomic Time by an integral number of seconds; it is maintained within 0.9 seconds of UT1 (see Universal Time) by introduction of Leap Seconds. The rotational orientation of the Earth, specified by UT1, may be obtained to an accuracy of a tenth of a second by applying the UTC to the increment DUT1 (where DUT1 = UT1 - UTC) that is broadcast in code with the time signals. Also called UTC. See also International Atomic Time; Universal Time; ZULU Time.
Dictionary of Military and Associated Terms. US Department of Defense 2005.
ThesaurusAntonymsRelated WordsSynonymsLegend:
Noun1.coordinated universal time - Greenwich Mean Time updated with leap seconds
GMT, Greenwich Mean Time, Greenwich Time, universal time, UT, UT1 - the local time at the 0 meridian passing through Greenwich, England; it is the same everywhere
Earth-received time, ERT - the coordinated universal time when an event is received on Earth
transmission time, TRM - the coordinated universal time when a transmission is sent from Earth to a spacecraft or other celestial body
SCET, spacecraft event time - the coordinated universal time on board the spacecraft; "SCET = TRM + OWLT"
Based on WordNet 3.0, Farlex clipart collection. © 2003-2012 Princeton University, Farlex Inc.
References in periodicals archive ?
Today and tomorrow, more than 400 atomic clocks in around 70 institutes are combined to form the international time scale, called Coordinated Universal Time or UTC.
More than 400 atomic clocks in 70 institutes form the international time scale, called Coordinated Universal Time or UTC.
And the International Bureau of Weights and Measures near Paris receives time readings from clocks worldwide to set its Coordinated Universal Time, or UTC, standard.
"UTC stands for Coordinated Universal Time and is a more accurate take on the traditional GMT.
The National Physical Laboratory (NPL) in Middlesex operates the group of atomic clocks that form the national time scale, known as the Coordinated Universal Time (UTC) and carries out laboratory research in the fields of maths and physics.
Certified Time is a proprietary and audited time delivery service that relies on Coordinated Universal Time (UTC), the official timescale of the National Institute of Standards and Technology (NIST).
At 10:25 Coordinated Universal Time (UTC) on July 16 (top image), the iceberg was still close to the glacier.
JUNE 30 -- A leap second is added to Coordinated Universal Time (UTC).
At midnight Coordinated Universal Time (UTC) on 6th June participating website operators will enable IPv6 connectivity persistently.
That's called Coordinated Universal Time. But the ideal timekeeper, because it has to do with observable reality, has to do with the Earth's rotation, or mean solar time.
Today's system is called Coordinated Universal Time (UTC).
The XL-GPS Time and Frequency Receiver generates time and frequency signals referenced to Coordinated Universal Time (UTC) and conforms to the European Union RoHS Directive.

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