年countryregionlanguage1月 New Year's Day January 2 January 3 Coming of Age Day2月 Foundation Day Emperor's Birthday3月 Vernal Equinox Day4月 Shōwa Day5月 Constitution Memorial Day Greenery Day Children's Day6月7月 Marine Day Health and Sports Day8月 Mountain Day Mountain Day (obs.)9月 Respect-for-Aged Day Autumnal Equinox Day10月11月 Culture Day Labor Thanksgiving Day12月 New Year's Eve