Definition of International atomic time
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International atomic time Definition from Language, Idioms & Slang Dictionaries & Glossaries
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international atomic time
international bank for reconstruction and development n : a united nations agency created to assist developing nations by loans guaranteed by member governments [syn: international bank for reconstruction and development , world bank, ibrd]
International atomic time Definition from Government Dictionaries & Glossaries
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International atomic time Definition from Science & Technology Dictionaries & Glossaries
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The time scale established by the International Time Bureau (BIH) on the basis of atomic clock data supplied by cooperating institutions. Note: The abbreviations "TAI" and "BIH" are a result of literal translation from the official international names that are written in French. (188 )
International atomic time Definition from Encyclopedia Dictionaries & Glossaries
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International Atomic Time (TAI, from the French name ) is a high-precision atomic coordinate time standard based on the notional passage of proper time on Earth's geoid. It is the basis for Coordinated Universal Time (UTC), which is used for civil timekeeping all over the Earth's surface, and for Terrestrial Time, which is used for astronomical calculations. when the last leap second was added, TAI is exactly 36 seconds ahead of UTC. The 36 seconds results from the initial difference of 10 seconds at the start of 1972, plus 26 leap seconds in UTC since 1972.
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