September 19 - September 20
Rosh Hashanah (Hebrew: רֹאשׁ הַשָּׁנָה), meaning “head of the year,” or Yom Teruah (יוֹם תְּרוּעָה), literally “day of shouting” or “day of blasting,” is the Hebrew New Year, falling on the first day of Tishrei. In Judaism it is the first of the High Holy Days (Yamim Nora’im יָמִים נוֹרָאִים “Days of Awe”) specified by Leviticus 23:23–32. The month of Tishrei, meaning “beginning” or “to begin,” is the first month of the civil year and the seventh month of the ecclesiastical year in the Hebrew calendar falling in September/October on the Gregorian calendar. Rosh Hashanah begins sunset of Friday, September 18, 2020 and ends nightfall of Sunday, September 20, 2020.
Read more about Rosh Hashanah on Wikipedia.