New Year's Day
New Year's Day (obs.)
Coming of Age Day
Coming of Age Day (obs.)
Foundation Day
Vernal Equinox Day
Emperor's Birthday
Constitution Memorial Day
Children's Day
Respect-for-Aged Day
Autumnal Equinox Day
Health and Sports Day
Culture Day
Labor Thanksgiving Day
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 ‹ 1977
1978
1979 › 
# Date Public holiday
1Sunday, 1 January 1978 New Year's Day
Monday, 2 January 1978 New Year's Day (observance)
2Sunday, 15 January 1978 Coming of Age Day
Monday, 16 January 1978 Coming of Age Day (observance)
3Saturday, 11 February 1978 Foundation Day
4Tuesday, 21 March 1978 Vernal Equinox Day
5Saturday, 29 April 1978 Emperor's Birthday
6Wednesday, 3 May 1978 Constitution Memorial Day
7Friday, 5 May 1978 Children's Day
8Friday, 15 September 1978 Respect-for-Aged Day
9Saturday, 23 September 1978 Autumnal Equinox Day
10Tuesday, 10 October 1978 Health and Sports Day
11Friday, 3 November 1978 Culture Day
12Thursday, 23 November 1978 Labor Thanksgiving Day