S1 Yom 6

The 6th day of the 10th Biblical Hebrew month starts at:
sunset on the 7th through sunset on the 8th of the Gregorian months.

Exodus 23:12

For six days do your work, and on the seventh day keep the Sabbath; so that your ox and your donkey may have rest, together with the son of your servant and the man from a strange land living among you.