Traditional Culture Encyclopedia - Almanac inquiry - What does "no meeting" mean in the old calendar?

What does "no meeting" mean in the old calendar?

Five unexpected times

The so-called "five unlucky days" means that when the sun is dry, whether it is good or bad depends on the influence, punishment and combination of the earthly branches.

I met Geng one day. See you tomorrow.

The next day, when the weather is fine. See you on Geng day C.

On the third day, when I met you. When Xinri meets Shi Ding.

Every day is the right time. See you tomorrow.

On the fifth day, when I met someone ... when I saw myself.