Is the week related to the astronomical cycle phenomenon?

Although the number of days in a year is determined by the operation of the earth, the number of days in a week is determined by people, which has nothing to do with the operation of celestial bodies, and there will be no specific phenomenon to indicate the day of the week;

In the same way, the length of a day is determined by the rotation and revolution of the earth, but how many hours and minutes a day are determined by people and have nothing to do with celestial bodies.