A round can also refer to the reincarnation of other years. It was also said in ancient China that 60 years and 30 years are a period. Of course, the most common and commonly used is 12 years.
In ancient China, twelve years was also called a discipline. During the Three Kingdoms, Zhuge Liang and he continued their lives. If they succeed, they can live one more year, that is, 12 years. For example, in The Journey to the West, Li Shimin sleepwalked in hell, and Cui Panguan privately increased his life span by one year, which also means 12 years.
Extended data
Ichi's statement
Every 12 years is called a cycle. In ancient Chinese, twelve years was called a period. There is a saying in Strange Tales from a Lonely Studio that you can live for one year.
Modern people usually call twelve years a round. For example, I am twelve years older than you. We are the same zodiac sign, but I am one round older than you.
It takes about twelve years for Jupiter to orbit the earth once, so it was called twelve years in ancient times.
"Mandarin in Four Years": Wen Gong was in Di for twelve years, and Hu Yan said: A year's storage can be far away. Zhao Wei's Note: Every year, the stars are a cycle for twelve years.
References:
Baidu encyclopedia-Yiji