Sukkot (Feast of Tabernacles) is a biblical holiday celebrated on the 15th day of the month of Tishrei (variously from late September to late October). It is one of the three biblically mandated festivals Shalosh Regalim on which Hebrews were commanded to make a pilgrimage to the Temple in Jerusalem. It follows the solemn holiday of Yom Kippur, or the Day of Atonement. http://www.fivefoldministryireland.com
Yom Kippur (Hebrew: יוֹם כִּפּוּר, IPA: [ˈjom kiˈpuʁ], or יום הכיפורים), also known as Day of Atonement, is the holiest day of the year for the Jewish people. Its central themes are atonement and repentance. Jewish people traditionally observe this holy day with an approximate 25-hour period of fasting and intensive prayer, often spending most of the day in synagogue services.