'On that Day' in the Bible

and the priest hath prepared one for a sin-offering, and one for a burnt-offering, and hath made atonement for him, because of that which he hath sinned by the body, and he hath hallowed his head on that day;

And there are men who have been defiled by the body of a man, and they have not been able to prepare the passover on that day, and they come near before Moses, and before Aaron, on that day,