Yom Kippur, also known as the Day of Atonement, is the holiest and most solemn day in the Jewish calendar. It falls on the tenth day of the Hebrew month of Tishrei, usually in September or October. The day is dedicated to fasting, prayer, repentance, and seeking forgiveness for sins committed over the past year. According to Jewish tradition, it is the day when God seals the fate of each individual for the coming year, after having been inscribed on Rosh Hashanah, the Jewish New Year. The observance includes a 25-hour fast from food and drink, abstinence from other physical comforts, and intense synagogue prayers. It is a time for personal reflection, reconciliation with others, and atonement before God. The day concludes with the blowing of the shofar, symbolizing the closing of the heavenly gates and the hope for forgiveness and a fresh start.