New Year's Day
Coming of Age Day
Foundation Day
Foundation Day (obs.)
Vernal Equinox Day
Shōwa Day
Shōwa Day (obs.)
Constitution Memorial Day
Greenery Day
Children's Day
Marine Day
Respect-for-Aged Day
Autumnal Equinox Day
Autumnal Equinox Day (obs.)
Health and Sports Day
Culture Day
Labor Thanksgiving Day
Emperor's Birthday
Emperor's Birthday (obs.)
  January
  February
  March
  April
  May
  June
  July
  August
  September
  October
  November
  December
 ‹ 1820
1821
1822 › 
# Date Public holiday
1Monday, 1 January 1821 New Year's Day
2Monday, 8 January 1821 Coming of Age Day
3Sunday, 11 February 1821 Foundation Day
Monday, 12 February 1821 Foundation Day (observance)
4Tuesday, 20 March 1821 Vernal Equinox Day
5Sunday, 29 April 1821 Shōwa Day
Monday, 30 April 1821 Shōwa Day (observance)
6Thursday, 3 May 1821 Constitution Memorial Day
7Friday, 4 May 1821 Greenery Day
8Saturday, 5 May 1821 Children's Day
9Monday, 16 July 1821 Marine Day
10Monday, 17 September 1821 Respect-for-Aged Day
11Sunday, 23 September 1821 Autumnal Equinox Day
Monday, 24 September 1821 Autumnal Equinox Day (observance)
12Monday, 8 October 1821 Health and Sports Day
13Saturday, 3 November 1821 Culture Day
14Friday, 23 November 1821 Labor Thanksgiving Day
15Sunday, 23 December 1821 Emperor's Birthday
Monday, 24 December 1821 Emperor's Birthday (observance)