When is the day when yin flourishes and yang declines?

When it comes to the changes of Yin and Yang in a day, from noon (i.e.11:00 ~13: 00), the Yang gradually declines and the Yin gradually rises, and at noon (i.e., 23: 00 ~ 0 1: 00), the Yin gradually declines. In other words, the sun is the most prosperous at noon and the cloudy noon is the most prosperous. At the peak, that is, at the beginning of the recession, there is a saying that it is extremely prosperous and extremely declining.