Universal Time

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• Universal Time — (UT) is a timescale based on the rotation of the Earth. It is a modern continuation of Greenwich Mean Time (GMT), i.e., the mean solar time on the meridian of Greenwich, and GMT is sometimes used loosely as a synonym for UTC. In fact the… …   Wikipedia

• universal time — (often caps.) See Greenwich Time. Abbr.: UT. [1885 90] * * * Mean (solar) time of the Greenwich meridian (0° longitude). Universal Time replaced the designation Greenwich Mean Time in 1928; since 1972 it has been based on international atomic… …   Universalium

• Universal Time — Die Universal Time (UT) ist die durch astronomische Beobachtung gewonnene mittlere Ortszeit des durch die Sternwarte von Greenwich führenden Nullmeridians. Sie ist eine universelle Zeitskala, welche die wahre Erdrotation widerspiegelt. In den… …   Deutsch Wikipedia

• 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 …   Military dictionary

• Universal Time — noun 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 …   Wiktionary

• 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 is based on mean sidereal time as measured in Greenwich. It is approximately… …   Aviation dictionary

• Universal Time — /junəvɜsəl ˈtaɪm/ (say yoohnuhversuhl tuym) noun 1. a system of time measurement based on Greenwich Mean Time, but counted from 0 h, which is equivalent to midnight Greenwich Mean Time, introduced in 1928 and used internationally until the… …  

• Universal Time Coordinated — Die koordinierte Weltzeit (UTC, Coordinated Universal Time[1]) ist die aktuelle Weltzeit. Sie hat in dieser Funktion die Mittlere Greenwichzeit (Greenwich Mean Time – GMT) bereits 1926 abgelöst. Sie ist eine Kombination aus der internationalen… …   Deutsch Wikipedia

• Universal Time — Temps universel Le Temps universel (TU, ou en anglais UT) est une échelle de temps basée sur la rotation de la Terre. Il s agit de la prolongation moderne du Temps moyen de Greenwich (GMT), qui était le temps solaire moyen au méridien de… …   Wikipédia en Français

• Universal time — noun Date: 1882 Greenwich mean time …   New Collegiate Dictionary

• universal time — Greenwich Mean Time …   Eponyms, nicknames, and geographical games