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Earth time

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Modern Time Standards on the Earth's Surface
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The Earth Time (TT) is a modern time earth Superficial Time standard , is located at Earth sea level Experiential Prime time 。
Chinese name
Earth time
Foreign name
terrestrial time
Field
astronomy
Abbreviation
TT
Properties
astronomical Earth system time standard
Cause
Gravity time dilation
definition
stay astronomy , is displayed for observers confined to the earth ephemeris Time coordinate of. It is related to Geocentric coordinate time (Geocentral Coordinate Time) is directly related to astronomical Earth system time standard. because Gravity time dilation ， Earth time The ticking sound of Geocentric coordinate time Slow down.
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