New Year's Day
January 2
January 3
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
New Year's Eve
  January
  February
  March
  April
  May
  June
  July
  August
  September
  October
  November
  December
 ‹ 1799
1800
1801 › 
# Date Public holiday
1Wednesday, 1 January 1800 New Year's Day
2Thursday, 2 January 1800 January 2
3Friday, 3 January 1800 January 3
4Monday, 13 January 1800 Coming of Age Day
5Tuesday, 11 February 1800 Foundation Day
6Thursday, 20 March 1800 Vernal Equinox Day
7Tuesday, 29 April 1800 Shōwa Day
8Saturday, 3 May 1800 Constitution Memorial Day
9Sunday, 4 May 1800 Greenery Day
10Monday, 5 May 1800 Children's Day
11Monday, 21 July 1800 Marine Day
12Monday, 15 September 1800 Respect-for-Aged Day
13Tuesday, 23 September 1800 Autumnal Equinox Day
14Monday, 13 October 1800 Health and Sports Day
15Monday, 3 November 1800 Culture Day
16Sunday, 23 November 1800 Labor Thanksgiving Day
17Tuesday, 23 December 1800 Emperor's Birthday
18Wednesday, 31 December 1800 New Year's Eve