翻訳と辞書 Words near each other ・ universal communications x ・ universal computer protocol ・ universal debugger ・ universal description, discovery, and integration ・ universal disk format ・ universal quantifier ・ universal resource identifier ・ universal resource locator ・ universal serial bus ・ universal thunk ・ universal time ・ universal time coordinated ・ universe of discourse ・ university of arizona ・ university of california at berkeley ・ university of durham ・ university of east london ・ university of edinburgh ・ university of hawaii ・ university of iceland Dictionary Lists mini英和辞書 mini和英辞書 Webster 1913 Latin-English FOLDOC Wikipedia English ウィキペディア

翻訳と辞書　辞書検索 [ 開発暫定版 ] スポンサード リンク universal time ： FOLDOC Universal Time (UT) The mean solar time along the prime meridian (0 longitude) that runs through the Greenwich Observatory outside of London, UK, where the current system originated. UT is tied to the rotation of the Earth in respect to the fictitious "mean Sun". Greenwich Mean Time (GMT) was measured from Greenwich mean midday until 1925 when the reference point was changed from noon to midnight and the name changed to "Universal Time". There are three separate definitions, UT0, UT1, and UT2, depending on which corrections have been applied to the Earth's motion. Coordinated Universal Time is kept within 0.9 seconds of UT1, by addition of leap seconds to International Atomic Time. (2001-08-02) スポンサード リンク 翻訳と辞書 : 翻訳のためのインターネットリソース Copyright(C) kotoba.ne.jp 1997-2016. All Rights Reserved.