Was the week of the ancient Egyptians ten days? What is the origin?

The ancient Egyptians divided some stars around the equator into 36 groups, the number of each group is different, but each group represents 65,438+00 days, which means that ten days, thirty days is a month, and four months is a season. I think before the seven-day week system, people used to say 10 days, just like we say 65438+ February now. Later, there were seven days in a week. Although there are ten days and weeks, they are all used to counting days in weeks. Maybe when there are only ten days before seven days in a week, 10 of the ten days is also regarded as 10 of the week, and ten days is regarded as a week.