Japanese era date昭和15年9月4日 (水)
Shōwa 15 . 9 . 4 (Wed)Gregorian date: Wednesday, September 4th 1940
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TodayShort form: S15.9.4
Zodiac year: Year of the Metal Dragon · 庚辰 (kanoe-tatsu)
Traditional month name: 長月 (nagatsuki)
The Shōwa era started on December 25th 1926 and ended on January 7th 1989.
The emperor during this era was Emperor Hirohito.