New Year's Day
January 2
January 3
Coming of Age Day
Foundation Day
Emperor's Birthday
Shōwa Day
Constitution Memorial Day
Greenery Day
Children's Day
Children's Day (obs.)
Marine Day
Mountain Day
Mountain Day (obs.)
Respect-for-Aged Day
Sports Day
Culture Day
Culture Day (obs.)
Labor Thanksgiving Day
New Year's Eve
  January
  February
  March
  April
  May
  June
  July
  August
  September
  October
  November
  December
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# Date Public holiday
1Tuesday, 1 January 2278 New Year's Day
2Wednesday, 2 January 2278 January 2
3Thursday, 3 January 2278 January 3
4Monday, 14 January 2278 Coming of Age Day
5Monday, 11 February 2278 Foundation Day
6Saturday, 23 February 2278 Emperor's Birthday
7Monday, 29 April 2278 Shōwa Day
8Friday, 3 May 2278 Constitution Memorial Day
9Saturday, 4 May 2278 Greenery Day
10Sunday, 5 May 2278 Children's Day
Monday, 6 May 2278 Children's Day (observance)
11Monday, 15 July 2278 Marine Day
12Sunday, 11 August 2278 Mountain Day
Monday, 12 August 2278 Mountain Day (observance)
13Monday, 16 September 2278 Respect-for-Aged Day
14Monday, 14 October 2278 Sports Day
15Sunday, 3 November 2278 Culture Day
Monday, 4 November 2278 Culture Day (observance)
16Saturday, 23 November 2278 Labor Thanksgiving Day
17Tuesday, 31 December 2278 New Year's Eve