The fifteenth day of this seventh month shall be the Feast of Tabernacles for seven days to Yah to remind generations that He made the children of Israel to dwell in booths, when He brought them out of the land of Egypt.

All Feast Days begin at sundown and end at sundown on the day specified in your location.

Leviticus 23:34-44

34 Speak unto the children of Israel, saying, The fifteenth day of this seventh month shall be the feast of tabernacles for seven days unto Yah.

35 On the first day shall be an holy convocation: ye shall do no servile work therein.

36 Seven days ye shall offer an offering made by fire unto Yah: on the eighth day shall be an holy convocation unto you; and ye shall offer an offering made by fire unto Yah: it is a solemn assembly; and ye shall do no servile work therein.

37 These are the feasts of Yah, which ye shall proclaim to be holy convocations, to offer an offering made by fire unto Yah, a burnt offering, and a meat offering, a sacrifice, and drink offerings, every thing upon his day:

38 Beside the sabbaths of Yah, and beside your gifts, and beside all your vows, and beside all your freewill offerings, which ye give unto Yah.

39 Also in the fifteenth day of the seventh month, when ye have gathered in the fruit of the land, ye shall keep a feast unto Yah seven days: on the first day shall be a sabbath, and on the eighth day shall be a sabbath.

40 And ye shall take you on the first day the boughs of goodly trees, branches of palm trees, and the boughs of thick trees, and willows of the brook; and ye shall rejoice before Yah your God seven days.

41 And ye shall keep it a feast unto Yah seven days in the year. It shall be a statute for ever in your generations: ye shall celebrate it in the seventh month.

42 Ye shall dwell in booths seven days; all that are Israelites born shall dwell in booths:

43 That your generations may know that I made the children of Israel to dwell in booths, when I brought them out of the land of Egypt: I am Yah your God.

44 And Moses declared unto the children of Israel the feasts of Yah.