The Jewish ceremony that formally marks the end of Shabbat is Havdalah.
The Hebrew word Havdalah means “separation” or “distinction.” The ceremony separates the holiness of Shabbat from the ordinary days of the week, usually after nightfall on Saturday. It is traditionally performed over a cup of wine or grape juice, with blessings over wine, fragrant spices, and a multi-wick candle.
Participants commonly look at the candle’s reflected light on their fingernails. The spices are associated with restoring the soul after Shabbat ends. Customs vary among Jewish communities, including the melodies and the shape of the spice container. Havdalah is different from Kiddush: Kiddush sanctifies Shabbat or a festival at its beginning, while Havdalah concludes Shabbat or a festival. The ceremony may also be used at the end of Jewish festivals, although some festival endings have slightly different details.