年countryregionlanguage1月 New Year's Day January 2 January 3 Coming of Age Day2月 Foundation Day Emperor's Birthday Emperor's Birthday (obs.)3月 Vernal Equinox Day4月 Shōwa Day5月 Constitution Memorial Day Greenery Day Children's Day Greenery Day6月7月 Marine Day8月 Mountain Day9月 Respect-for-Aged Day Autumnal Equinox Day10月 Health and Sports Day11月 Culture Day Labor Thanksgiving Day Labor Thanksgiving Day (obs.)12月 New Year's Eve