S2 Yom 10 - Atonement Day

Yom Kippur (Atonement Day) and the 10th day of the Biblical month starts at:
sunset on the 22nd through sunset on the 23rd of the Gregorian month.

Leviticus 23:27-32

“However on the tenth day of this seventh month is Yom Kippur: it shall be a holy convocation to you, and you shall afflict yourselves; and you shall offer an offering made by fire to the LORD. You shall do no manner of work in that same day; for it is Yom Kippur, to make atonement for you before the LORD your God. For whoever it is who shall not deny himself in that same day; shall be cut off from his people. Whoever it is who does any manner of work in that same day, that person I will destroy from among his people. You shall do no manner of work: it is a statute forever throughout your generations in all your dwellings. It shall be a Shabbat of solemn rest for you, and you shall deny yourselves. In the ninth day of the month at evening, from evening to evening, you shall keep your Shabbat.”