Yom Kippur 2025 Fasting Times 2025. The holy day is observed on the tenth day of tishri, the seventh month in the hebrew calendar. The period between rosh hashanah and yom kippur is considered the holiest season in the jewish calendar, with the climax of the '10 days of repentance' occurring at yom kippur.
Let’s begin with the dates: The tenth day of tishrei is yom kippur, the day of atonement.