Japanese era date平成21年12月21日 (月)
Heisei 21 . 12 . 21 (Mon)Gregorian date: Monday, December 21st 2009
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TodayShort form: H21.12.21
Zodiac year: Year of the Earth Ox · 己丑 (tsuchinoto-ushi)
Traditional month name: 師走 (shiwasu)
The Heisei era started on January 8th 1989 and ended on April 30th 2019.
The emperor during this era was Emperor Akihito.