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
 ‹ 1663
1664
1665 › 
# Date Public holiday
1Tuesday, 1 January 1664 New Year's Day
2Monday, 14 January 1664 Coming of Age Day
3Monday, 11 February 1664 Foundation Day
4Thursday, 20 March 1664 Vernal Equinox Day
5Tuesday, 29 April 1664 Shōwa Day
6Saturday, 3 May 1664 Constitution Memorial Day
7Sunday, 4 May 1664 Greenery Day
8Monday, 5 May 1664 Children's Day
9Monday, 21 July 1664 Marine Day
10Monday, 15 September 1664 Respect-for-Aged Day
11Tuesday, 23 September 1664 Autumnal Equinox Day
12Monday, 13 October 1664 Health and Sports Day
13Monday, 3 November 1664 Culture Day
14Sunday, 23 November 1664 Labor Thanksgiving Day
15Tuesday, 23 December 1664 Emperor's Birthday