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
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1639
1640 › 
# Date Public holiday
1Saturday, 1 January 1639 New Year's Day
Monday, 3 January 1639 New Year's Day (observance)
2Monday, 10 January 1639 Coming of Age Day
3Friday, 11 February 1639 Foundation Day
4Sunday, 20 March 1639 Vernal Equinox Day
5Friday, 29 April 1639 Shōwa Day
6Tuesday, 3 May 1639 Constitution Memorial Day
7Wednesday, 4 May 1639 Greenery Day
8Thursday, 5 May 1639 Children's Day
9Monday, 18 July 1639 Marine Day
10Monday, 19 September 1639 Respect-for-Aged Day
11Friday, 23 September 1639 Autumnal Equinox Day
12Monday, 10 October 1639 Health and Sports Day
13Thursday, 3 November 1639 Culture Day
14Wednesday, 23 November 1639 Labor Thanksgiving Day
15Friday, 23 December 1639 Emperor's Birthday