Japanese era date昭和17年8月21日 (金)
Shōwa 17 . 8 . 21 (Fri)Gregorian date: Friday, August 21st 1942
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TodayShort form: S17.8.21
Zodiac year: Year of the Water Horse · 壬午 (mizunoe-uma)
Traditional month name: 葉月 (hazuki)
The Shōwa era started on December 25th 1926 and ended on January 7th 1989.
The emperor during this era was Emperor Hirohito.