In the seventh month, on the first day of the month, you shall have a sabbath-rest, a memorial of blowing of trumpets, a holy convocation.

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

Leviticus 23:23-25

23 And Yah spake unto Moses, saying,

24 Speak unto the children of Israel, saying, In the seventh month, in the first day of the month, shall ye have a sabbath, a memorial of blowing of trumpets, an holy convocation.

25 Ye shall do no servile work therein: but ye shall offer an offering made by fire unto Yah.