Leviticus 23:32

23:32 It is a Sabbath of complete rest for you, and you must humble yourselves on the ninth day of the month in the evening, from evening until evening you must observe your Sabbath.”

Leviticus 24:3

24:3 Outside the veil-canopy of the congregation in the Meeting Tent Aaron must arrange it from evening until morning before the Lord continually. This is a perpetual statute throughout your generations.