年countryregionlanguage1月 New Year's Day January 2 New Year's Day (obs.) January 2 (obs.) Coming of Age Day2月 Foundation Day3月 Vernal Equinox Day4月 Shōwa Day5月 Constitution Memorial Day Greenery Day Children's Day6月7月 Marine Day8月9月 Respect-for-Aged Day Autumnal Equinox Day10月 Health and Sports Day11月 Culture Day Labor Thanksgiving Day12月 Emperor's Birthday