Hanukkah is one of the most widely observed Jewish holidays. The eight-day-long winter festival begins on the 25th day of Kislev, the ninth month of the Jewish calendar. This year, the celebrations will extend from November 28th, 2021, to December 6th, 2021. Also known as the Festival of Lights, Hanukkah celebrates the victory of good over evil and is a happy occasion with many fun traditions.