Yom Kippur is the holiest day in Judaism and Samaritanism. It occurs annually on the 10th of Tishrei. Primarily centered on atonement and repentance, the day's observances consist of full fasting and ascetic behavior accompanied by intensive prayer as well as sin confessions.
All Hallows' Eve, or All Saints' Eve is a celebration observed in many countries on 31 October, the eve of the Western Christian feast of All Saints' Day.