About Sfeka d'yoma
Sfeka d'yoma (Jewish Babylonian Aramaic: ספיקא דיומא, lit. 'doubt about the day', or doubt regarding the exact date of the day) is a concept and legal principle in Jewish law which explains why some Jewish holidays are celebrated for one day in the Land of Israel but for two days outside the Land. The implications of sfeka d'yoma are discussed in Rosh Hashanah 21a and in the commentaries and poskim.
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Location, Israel
CategoryCulture
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