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
Children's Day (obs.)
Marine Day
Respect-for-Aged Day
Autumnal Equinox Day
Health and Sports Day
Culture Day
Culture Day (obs.)
Labor Thanksgiving Day
Emperor's Birthday
New Year's Eve
  January
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  March
  April
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  June
  July
  August
  September
  October
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  December
 ‹ 1804
1805
1806 › 
# Date Public holiday
1Tuesday, 1 January 1805 New Year's Day
2Wednesday, 2 January 1805 January 2
3Thursday, 3 January 1805 January 3
4Monday, 14 January 1805 Coming of Age Day
5Monday, 11 February 1805 Foundation Day
6Wednesday, 20 March 1805 Vernal Equinox Day
7Monday, 29 April 1805 Shōwa Day
8Friday, 3 May 1805 Constitution Memorial Day
9Saturday, 4 May 1805 Greenery Day
10Sunday, 5 May 1805 Children's Day
Monday, 6 May 1805 Children's Day (observance)
11Monday, 15 July 1805 Marine Day
12Monday, 16 September 1805 Respect-for-Aged Day
13Monday, 23 September 1805 Autumnal Equinox Day
14Monday, 14 October 1805 Health and Sports Day
15Sunday, 3 November 1805 Culture Day
Monday, 4 November 1805 Culture Day (observance)
16Saturday, 23 November 1805 Labor Thanksgiving Day
17Monday, 23 December 1805 Emperor's Birthday
18Tuesday, 31 December 1805 New Year's Eve