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
  May
  June
  July
  August
  September
  October
  November
  December
 ‹ 1430
1431
1432 › 
# Date Public holiday
1Saturday, 1 January 1431 New Year's Day
Monday, 3 January 1431 New Year's Day (observance)
2Monday, 10 January 1431 Coming of Age Day
3Friday, 11 February 1431 Foundation Day
4Sunday, 20 March 1431 Vernal Equinox Day
5Friday, 29 April 1431 Shōwa Day
6Tuesday, 3 May 1431 Constitution Memorial Day
7Wednesday, 4 May 1431 Greenery Day
8Thursday, 5 May 1431 Children's Day
9Monday, 18 July 1431 Marine Day
10Monday, 19 September 1431 Respect-for-Aged Day
11Friday, 23 September 1431 Autumnal Equinox Day
12Monday, 10 October 1431 Health and Sports Day
13Thursday, 3 November 1431 Culture Day
14Wednesday, 23 November 1431 Labor Thanksgiving Day
15Friday, 23 December 1431 Emperor's Birthday