When is the alternation of yin and yang in the Book of Changes?

I specialize in yin and yang. This question is very general.

First of all, everything has yin and yang. At the turn of yin and yang, we are talking about dynamic yin and yang, and static yin and yang will not meet in relative time.

Then I know the specific things of Yin and Yang, and then I know the significance of the alternation of Yin and Yang in this matter.

For example, in terms of time, every day at noon and noon is the time when yin and yang alternate.

From the point of view that men and women are divided into yin and yang, the turn of yin and yang is the time to create new life.

From the perspective of yin and yang of the house, the turn of yin and yang is when a person walks out of the house from the door.

Corresponding to different yin and yang, the intersection of yin and yang has different meanings, and it is not a generalization.