What is the ugly branch?

Ten branches and twelve branches can explain the seasonal changes. "Ugly" means "new button", which means tied with a rope.

The ugly ground branch mainly depends on what it is used for. When used, the ugly branch is 1 ~ 3 o'clock after midnight. Used in the zodiac, the ugly branch is a cow. Use the month, the ugly branch is December.

Different combinations of 10-day stem and 12-day branch will have different meanings.