Jan. 01 New Year's Day Jan. 15 Coming-of-Age Day Feb. 11 National Founding Day Mar. 20 Vernal Equinox Day Apr. 29 Greenery Day May 03 Constitution Memorial Day May 04 National Holiday May 05 Children's Day Jul. 20 Marine Day Jul. 21 National Holiday Sep. 15 Respect for the Aged Day Sep. 23 Autumn Equinox Day Oct. 10 Health-Sports Day Nov. 03 Culture Day Nov. 23 Labor Thanksgiving Day Nov. 24 National Holiday Dec. 23 Emperor's Birthday