New Year's Day
New Year's Day (obs.)
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
  January
  February
  March
  April
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  June
  July
  August
  September
  October
  November
  December
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1380
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# Date Public holiday
1Saturday, 1 January 1380 New Year's Day
Monday, 3 January 1380 New Year's Day (observance)
2Monday, 10 January 1380 Coming of Age Day
3Friday, 11 February 1380 Foundation Day
4Monday, 20 March 1380 Vernal Equinox Day
5Saturday, 29 April 1380 Shōwa Day
6Wednesday, 3 May 1380 Constitution Memorial Day
7Thursday, 4 May 1380 Greenery Day
8Friday, 5 May 1380 Children's Day
9Monday, 17 July 1380 Marine Day
10Monday, 18 September 1380 Respect-for-Aged Day
11Saturday, 23 September 1380 Autumnal Equinox Day
12Monday, 9 October 1380 Health and Sports Day
13Friday, 3 November 1380 Culture Day
14Thursday, 23 November 1380 Labor Thanksgiving Day
15Saturday, 23 December 1380 Emperor's Birthday