Sukkot for the year 2021 starts on Tuesday, September 21st ending the 7 day festival on sundown Monday, September 27th. Because the Jewish calendar is a lunar calendar, the holiday begins on the sunset of the previous day on the evening of Monday, September 20th.
Sukkot is a seven day Jewish festival with the first day starting on the 15th day of the first month on the Jewish calendar called Tishri. This festival season is not a public holiday but many Jewish businesses and schools may have reduced hours. Shemini Atzeret and Simchat Torah are celebrated the next consecutive 2 days after Sukkot with Simchat Torah ending the annual cycle of bible readings.
Days to the start of Sukkot 2021
Tuesday, September 21st is day number 264 of the 2021 calendar year with 1 year, 10 months, 4 days until the start of the 7 day festival of Sukkot 2021.