Yom Kippur 2015 - The Jewish Day of Atonement

Yom Kippur is observed on Sept. 22-23 in 2015. Known as the Jewish Day of Atonement, Yom Kippur falls on 10 Tishrei 5776 on the Hebrew calendar, which is from sundown on Sept. 22 to nightfall on Sept. 23.

http://www.huffingtonpost.com/entry/yom-kippur-2015-an-introduction-to-the-jewish-day-of-atonement_55f352a5e4b077ca094f3c6c