universal time

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Related to universal time: coordinated universal time, Zulu time

universal time

n. Abbr. UT
The time at the Prime Meridian, calculated from the apparent rotation of the celestial sphere and used primarily by astronomers.

universal time

1. (Units) (from 1928) name adopted internationally for Greenwich Mean Time (measured from Greenwich midnight), now split into several slightly different scales, one of which (UT1) is used by astronomers. Abbreviation: UT
2. (Units) Also called: universal coordinated time an internationally agreed system for civil timekeeping introduced in 1960 and redefined in 1972 as an atomic timescale. Available from broadcast signals, it has a second equal to the International Atomic Time (TAI) second, the difference between UTC and TAI being an integral number of seconds with leap seconds inserted when necessary to keep it within 0.9 seconds of UT1. Abbreviation: UTC

u·ni·ver·sal time

The mean time for the meridian at Greenwich, England (0° longitude), which runs through the former site of the Royal Observatory. It is used as a basis for calculating time throughout most of the world. Also called Greenwich Mean Time.

Universal Time

A measure of time that conforms, within a close approximation, to the mean diurnal rotation of the Earth and serves as the basis of civil timekeeping. Universal Time (UT1) is determined from observations of the stars, radio sources, and also from ranging observations of the moon and artificial Earth satellites. The scale determined directly from such observations is designated Universal Time Observed (UTO); it is slightly dependent on the place of observation. When UTO is corrected for the shift in longitude of the observing station caused by polar motion, the time scale UT1 is obtained. When an accuracy better than one second is not required, Universal Time can be used to mean Coordinated Universal Time. Also called ZULU time. Formerly called Greenwich Mean Time.
ThesaurusAntonymsRelated WordsSynonymsLegend:
Noun1.Universal Time - the local time at the 0 meridian passing through Greenwich, Englanduniversal time - the local time at the 0 meridian passing through Greenwich, England; it is the same everywhere
time - the continuum of experience in which events pass from the future through the present to the past
coordinated universal time, UTC - Greenwich Mean Time updated with leap seconds
References in classic literature ?
There is not one universal time, except by an elaborate construction; there are only local times, each of which may be taken to be the time within one biography.
The irony of the origins of universal time keeping and the way it impinges is not lost on me.
The computers that "count" the seconds for the USNO's clocks are instructed to add one integral second to their real-time realization of Coordinated Universal Time, or UTC, at the end of the final minute of the UTC day, according to Chester.
On June 15, Earth's shadow will start to darken the moon at 18:23 universal time (UT) (2:22 p.
The 2011 Draconid outburst is expected to occur between 17:00 and 18:00 Universal Time on October 8, 2011.
1884 -- Greenwich was adopted as the universal time meridian of longitude from which standard times throughout the world are calculated.
With the eclipse timed for 06:09 universal time, the animals of the region will have no doubt just prepared themselves for the day ahead only to be plunged into darkness once again.
These includes universal time zone support, multiple currency tracking, country-specific mailing label formats and more.
ITU experts and membership along with other organizations have been studying the consequences of eliminating the so-called leap second to adjust to the earth s rotation in relation to Coordinated Universal Time (UTC), the current standard for measuring time.
The planet Mars, as we have observed through scientific measures is uninhabitable and certainly would not have ever in the universal time factor been inhabitable for life form that we can relate to.
Anyway there's Coordinated Universal Time, International Atomic Time, GPS Time, Greenwich Mean Time and - I suspect - Public Transport Time.
These timing centers contain time servers that are certified by the National Institute of Standards and Technology (NIST) as traceable to Coordinated Universal Time (UTC).

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