Japanese era date昭和17年9月4日 (金)
Shōwa 17 . 9 . 4 (Fri)Gregorian date: Friday, September 4th 1942
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TodayShort form: S17.9.4
Zodiac year: Year of the Water Horse · 壬午 (mizunoe-uma)
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.