Is September 21 2017 Part Of A Jewish Celebration?

The following is a collection of holidays, commemorations, observations and celebrations for the Jewish community during Thursday, 2017-09-21. For more information on the equivalence of dates in the Hebrew calendar and other calendars, please see Hebrew Calendar 5777.

Rosh Hashanah:
^[judaism] Rosh Hashaná is the Jewish New Year (the year 5778 starts on this date in the Hebrew calendar!). It is the first of the High Holy Days or Yamim Nora'im ("Days of Awe") which usually occur in the early autumn of the Northern Hemisphere. Rosh Hashanah is a two-day celebration, which begins on the first day of Tishrei. The day is believed to be the anniversary of the creation of Adam and Eve, the first man and woman, and their first actions toward the realization of humanity's role in God's world. Rosh Hashanah customs include sounding the shofar (a hollowed-out ram's horn) and eating symbolic foods such as apples dipped in honey to evoke a "sweet new year".
Day of Repentance - Day 1:
Starting from the Jewish New Year, Rosh Hashanah, ten days of repentance, also referred to as Days of Awe, begin during which people meditate on the sins committed during the past year and proceeds to repent. The 10 days of repentance, also called Aseret Yemei Teshuva(Aseret Y'may T'shuvah), end with the conclusion of Yom Kippur.
Hebrew month of Tishri 5778 starts:
^[30days] Tishrei is the first month of the civil year and the seventh month of the ecclesiastical year on the Hebrew calendar. This month starts generally between September and October on the Gregorian calendar.