Yom Kippur, observed on the tenth day of the Hebrew month of Tishrei, is regarded as the most solemn day in the Jewish calendar. Known as the 'Sabbath of Sabbaths,' it is marked by a complete cessation of work and abstention from physical pleasures, including eating, drinking, bathing, wearing leather shoes, and marital relations. These practices are designed to foster a deep spiritual atmosphere, encouraging reflection, repentance, and renewal. The article also provides the specific times for the beginning of Yom Kippur in various cities, highlighting its widespread observance across Israel.