Greenwich Mean Time
"Greenwich Mean Time" (GMT) is a term originally referring to mean solar time at the Royal Greenwich Observatory in Greenwich in London.
Greenwich Mean Time
Related Category: Astronomy: General
or Greenwich meridian time (GMT), the former name for mean solar time at the original site of the Royal Observatory in Greenwich, England, which is located on the prime meridian.
Greenwich mean time
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To find your place from Greenwich Mean Time, see below. I live in Portland so mine is normally -8 and is -7 during daylight savings time.
Greenwich Mean Time (GMT): see GMT, time (types of)
Greenwich Meridian: the line of longitude (or half a great circle) passing through the centre of the Airy transit circle at the Royal Observatory at Greenwich and which defines the origin of ...
The Greenwich Mean Time (GST) is the of the mean equinox of date.
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GMT (Greenwich Mean Time) The local time at the 0 meridian passing through Greenwich, England; it is the same everywhere. Same as UT (Universal Time).
GMT. Greenwich Mean Time. (See Coordinated Universal Time.)
Granulation. Cellular structure of the solar photosphere visible at high spatial resolution.
GMT -- Greenwich Mean Time. Obsolete. UT, Universal Time is preferred.
G.M.T. -- Greenwich Mean Time. The time at Greenwich, England, which is used as the basis for standard time throughout the world.
Universal Time: Greenwich Mean Time, expressed in the 24-hour system. For example, 23:00 UT is 6 pm Eastern Standard Time or 7 pm Eastern Daylight Time.
GMT (abbr) = Greenwich mean time. gnotobiotics The study of germ-free animals. goniometer An instrument for measuring angles. gox Gaseous oxygen. gradient 1. The space rate of decrease of a function.
Therefore, it is also known as GREENWICH MEAN TIME, or sometimes simply UNIVERSAL TIME. CORONA. The outermost layer of the solar atmosphere, characterized by low densities (1,0E+06deg.K). CORONAL HOLE.
Local mean time at the Greenwich meridian is called Greenwich mean time, or universal time. It was called local civil time in United States terminology from 1925 through 1952.
The recording provides you with UTC, or Coordinated Universal Time, also called Greenwich Mean Time.
It is the same as Greenwich mean time, counted from 0 hours beginning at Greenwich mean midnight.
Since the late 19th century, the Prime Meridian at Greenwich has served as the reference line for Greenwich Mean Time. Before this, almost every town in the world kept its own local time.
The fighting in World War I ended when an armistice took effect at 11:00 am Greenwich Mean Time on November 11, 1918.
The time standard by which Greenwich Mean Time became known as for scientific purposes in 1928. UTC is the time given by broadcast time since 1972.
UNIVERSAL TIME
Universal time (abbreviated UT) is the same as Greenwich Mean Time (abbreviated GMT); it is the time zone of Greenwich, England (longitude zero).
Planet Distance from U.A.
(Astronomical Units) Orbital period
Planetary Year Mass ...
Universal Time (UT)
Also known as Greenwich Mean Time, this is local time on the Greenwich meridian. Universal time is used by astronomers as a standard measure of time.
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The Julian Day is the number of days since the year -4712. The Julian Day begins at 12:00 Noon Greenwich mean time.
Jumbled Terrain
Strangely disturbed regions of the moon opposite the locations of the Imbrium basin and Mare Oriental ...
Astronomers, astronauts and people dealing with satellite data may need a time schedule which is the same everywhere, not tied to a locality or time zone. The Greenwich mean time, ...
the local time of day on a line of longitude centered on Greenwich, England (also known as Greenwich Mean Time); it forms the basis for all civil timekeeping
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variable star ...
The first image, taken at an equivalent time to 8:06:10 Greenwich Mean Time (1:06 a.m. Pacific Daylight Time), shows no impact.
It replaced Mars24's previous use of the term "Airy Mean Time" (AMT), which was a direct parallel of Greenwich Mean Time (GMT). In an astronomical context, "GMT" is a deprecated name for Universal Time, or sometimes more specifically for UT1.
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215. Julian Day
The Julian Day is the number of days since the year -4712. The Julian Day begins at 12:00 Noon Greenwich mean time.
The time for many astronomical events is given in Universal Time (UT), which is (approximately) the local time for Greenwich, England---the Greenwich Mean Time or GMT.
Online Ephemeris from 1891 to 2100 -- A simple ephemeris that is very easy to use and extremely accurate. All times are for Midnight (00:00 Hours) Greenwich Mean Time (UTC).
Monthly Ephemeris
Daily ephemeris, at the TAU AstroClub web site ...
The same as Greenwich Mean Time (GMT) in England. Eastern Standard Time (EST) is five hours earlier than Universal Time.
 See also: Time, Earth, Solar, Second, Period
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