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
Labor Thanksgiving Day (obs.)
Emperor's Birthday
  January
  February
  March
  April
  May
  June
  July
  August
  September
  October
  November
  December
 ‹ 1399
1400
1401 › 
# Date Public holiday
1Wednesday, 1 January 1400 New Year's Day
2Monday, 13 January 1400 Coming of Age Day
3Tuesday, 11 February 1400 Foundation Day
4Thursday, 20 March 1400 Vernal Equinox Day
5Tuesday, 29 April 1400 Shōwa Day
6Saturday, 3 May 1400 Constitution Memorial Day
7Sunday, 4 May 1400 Greenery Day
8Monday, 5 May 1400 Children's Day
9Monday, 21 July 1400 Marine Day
10Monday, 15 September 1400 Respect-for-Aged Day
11Tuesday, 23 September 1400 Autumnal Equinox Day
12Monday, 13 October 1400 Health and Sports Day
13Monday, 3 November 1400 Culture Day
14Sunday, 23 November 1400 Labor Thanksgiving Day
Monday, 24 November 1400 Labor Thanksgiving Day (observance)
15Tuesday, 23 December 1400 Emperor's Birthday