What do you mean by Tiande Day and Yuede Day?

Yuede: It is the virtue of Taiyin, and its function is slightly similar to that of Tiande. When you enter the life, the main blessing is far-reaching, life is long, and you don't commit official punishment. Tiande is Yang De, its function is obvious, Yuede is Yinde, and its function is hidden. When Tian Yue attends the meeting, the strength will be concentrated, which will benefit the world and society, and all the blessings will be gathered.

It's a number of specific days divided by lunar calendar days.