The 8th Day of The Feast of Tabernacle (Shemini Atzeret) is held on the 22nd day of the seventh month. It is considered as a convocation or a Sabbath Day which means no servile work is done on this day but should be a day of solemn assembly. This is the final day of Tabernacles. The fields were plowed and sown during the early rains fell that fell in late October until November according to the Jewish calendar. 
​22nd day of the seventh month.
Lev 23:36,39, Num 29:35

Reference: The Biblical Feast Days. Retrieved on Feb. 29, 2016. http://biblelight.net/feasts.html

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