年countryregionlanguage1月 New Year's Day January 2 January 3 Coming of Age Day2月 Foundation Day3月 Vernal Equinox Day4月 Shōwa Day5月 Constitution Memorial Day Greenery Day Children's Day Children's Day (obs.)6月7月 Marine Day8月 Mountain Day Mountain Day (obs.)9月 Respect-for-Aged Day Autumnal Equinox Day10月 Health and Sports Day11月 Culture Day Culture Day (obs.) Labor Thanksgiving Day12月 Emperor's Birthday New Year's Eve