New Year's Day
January 2
January 3
Coming of Age Day
Foundation Day
Foundation Day (obs.)
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
New Year's Eve
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 ‹ 1939
1940
1941 › 
# Date Public holiday
1Monday, 1 January 1940 New Year's Day
2Tuesday, 2 January 1940 January 2
3Wednesday, 3 January 1940 January 3
4Monday, 8 January 1940 Coming of Age Day
5Sunday, 11 February 1940 Foundation Day
Monday, 12 February 1940 Foundation Day (observance)
6Wednesday, 20 March 1940 Vernal Equinox Day
7Monday, 29 April 1940 Shōwa Day
8Friday, 3 May 1940 Constitution Memorial Day
9Saturday, 4 May 1940 Greenery Day
10Sunday, 5 May 1940 Children's Day
Monday, 6 May 1940 Children's Day (observance)
11Monday, 15 July 1940 Marine Day
12Monday, 16 September 1940 Respect-for-Aged Day
13Monday, 23 September 1940 Autumnal Equinox Day
14Monday, 14 October 1940 Health and Sports Day
15Sunday, 3 November 1940 Culture Day
Monday, 4 November 1940 Culture Day (observance)
16Saturday, 23 November 1940 Labor Thanksgiving Day
17Monday, 23 December 1940 Emperor's Birthday
18Tuesday, 31 December 1940 New Year's Eve