You cannot eat during Yom Kippur itself, as it is a full fast day lasting about 25 hours, starting from sunset on the evening before Yom Kippur and ending after nightfall the following day. For 2025, Yom Kippur begins at sunset on Wednesday, October 1, and ends after nightfall on Thursday, October 2. Eating is prohibited during this fast period, which is a key part of the observance. The last time to eat before the fast officially begins is before sunset on the eve of Yom Kippur. The fast is traditionally observed for about 25 hours without eating or drinking at all, ending when night falls the next day, at which point a break-fast meal is eaten.
