New Year's Day
Coming of Age Day
Foundation Day
Vernal Equinox Day
Shōwa Day
Constitution Memorial Day
Greenery Day
Children's Day
Marine Day
Respect-for-Aged Day
Autumnal Equinox Day
Health and Sports Day
Culture Day
Labor Thanksgiving Day
Emperor's Birthday
  January
  February
  March
  April
  May
  June
  July
  August
  September
  October
  November
  December
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1665
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# Date Public holiday
1Thursday, 1 January 1665 New Year's Day
2Monday, 12 January 1665 Coming of Age Day
3Wednesday, 11 February 1665 Foundation Day
4Friday, 20 March 1665 Vernal Equinox Day
5Wednesday, 29 April 1665 Shōwa Day
6Sunday, 3 May 1665 Constitution Memorial Day
7Monday, 4 May 1665 Greenery Day
8Tuesday, 5 May 1665 Children's Day
9Monday, 20 July 1665 Marine Day
10Monday, 21 September 1665 Respect-for-Aged Day
11Wednesday, 23 September 1665 Autumnal Equinox Day
12Monday, 12 October 1665 Health and Sports Day
13Tuesday, 3 November 1665 Culture Day
14Monday, 23 November 1665 Labor Thanksgiving Day
15Wednesday, 23 December 1665 Emperor's Birthday