The Month of Tishrei:
The month of Tishri, which falls during the months of September and October on the Gregorian calendar, is probably the busiest time of the year for Jewish holidays. In the month of Tishri, there are a total of 12 days of special religious significance, 7 of them holidays on which work is not permitted.
These holidays include the holidays known as the "High Holidays," the most important holidays of the Jewish year: Rosh Hashanah (1st and 2nd of the month of Tishrei, 2 days) and Yom Kippur (10th of Tishrei, 1 day). These are followed by Sukkot (15th through 21st, 7 days), Shmini Atzeret (22nd, 1 day) and Simchat Torah (23rd, 1 day).
