🌐EnglishEnglishBahasa IndonesiaDeutschEspañolFrançaisItalianoPolskiSvenskaTiếng ViệtTürkçeРусскийالعربيةفارسیไทย한국어中文日本語EntityQ1225911· pop 34· linked from 349 articlesintercalationinsertion of a leap day, week, or month into some calendar years to make the calendar follow the seasons or moon phasesAvailable in 34 languagesEspañolFrançaisDeutsch中文日本語РусскийItalianoالعربيةAfrikaansBahasa IndonesiaCatalanConnectionsgeologic time scaleEntityleap yearEntityCategoriesCalendarsUnits of time