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360-day calendar : ウィキペディア英語版 | 360-day calendar The 360-day calendar is a method of measuring durations used in financial markets, in computer models, in ancient literature, and in prophetic literary genres. It is based on merging the three major calendar systems into one complex clock, with the 360-day year as the average year of the lunar and the solar: (''(solar)'' + 354.3829 ''(lunar)'' ) = 719.61 ÷ 2 = 359.8 days rounded to 360. It is a simplification to a 360-day year, consisting of 12 months of 30 days each. To derive such a calendar from the standard Gregorian calendar, certain days are skipped. == Ancient Calendars ==
Ancient calendars around the world initially used a 360 day calendar.
抄文引用元・出典: フリー百科事典『 ウィキペディア(Wikipedia)』 ■ウィキペディアで「360-day calendar」の詳細全文を読む
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