This extra day is not celebrated by Israelis, regardless of whether they are in Israel at the time of the holiday, because it is not the custom of their ancestors, but is celebrated by everybody else, even if they are visiting Israel at the time of the holiday. Messengers were not dispatched on the holiday, so even people in Israel did not know whether a new moon had been observed, and everybody celebrated two days. The practice was also maintained as a custom after the mathematical calendar was adopted. Yom Kippur is celebrated only one day everywhere, because extending the holiday's severe restrictions for a second day would cause an undue hardship. List of All Holiday Dates Below is a list of all major holiday dates for the next five years.
All holidays begin at sundown on the date before the date specified here.
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