Jewish Shabbat (Shabbath, Shabbes, Shobos, etc.) is a weekly day of rest, observed from sundown on Friday until the appearance of three stars in the sky on Saturday night. It is also observed by a minority of Christians, such as adherents of Messianic Judaism and Seventh-day Adventists. Thirty-nine activities prohibited on Shabbat are listed in Tractate Shabbat (Talmud).