New Year's Day
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
  January
  February
  March
  April
  May
  June
  July
  August
  September
  October
  November
  December
 ‹ 1398
1399
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# Date Public holiday
1Tuesday, 1 January 1399 New Year's Day
2Monday, 14 January 1399 Coming of Age Day
3Monday, 11 February 1399 Foundation Day
4Wednesday, 20 March 1399 Vernal Equinox Day
5Monday, 29 April 1399 Shōwa Day
6Friday, 3 May 1399 Constitution Memorial Day
7Saturday, 4 May 1399 Greenery Day
8Sunday, 5 May 1399 Children's Day
Monday, 6 May 1399 Children's Day (observance)
9Monday, 15 July 1399 Marine Day
10Monday, 16 September 1399 Respect-for-Aged Day
11Monday, 23 September 1399 Autumnal Equinox Day
12Monday, 14 October 1399 Health and Sports Day
13Sunday, 3 November 1399 Culture Day
Monday, 4 November 1399 Culture Day (observance)
14Saturday, 23 November 1399 Labor Thanksgiving Day
15Monday, 23 December 1399 Emperor's Birthday