If the ten-day period is calculated by year, it should be 12 years, that is, a complete animal year. In this way, the time unit of ten-day calculation should be ten-day = 12 years, and over fifty-day should be 60 years old instead of 50 years old.
The basic meaning of ten days:
1 .10 is ten days (a month is divided into thirty days): early, middle and late, Xunkan.
2. Ten years old is ten years old: over sixty years old and eighty years old.
3. Ten-day can also refer to 12 years. Generally speaking, ten-day freshman or ten-day junior refers to a zodiac cycle 12 years.
: weak crown: the man is twenty years old. ("Book of Rites Quli Shang": "Twenty is a weak crown." )
Tao Li Nianhua: Female is twenty years old.
Flower in love: female is twenty-four years old. A woman's marriage is called the year of plum, _ the year of plum.
Standing: thirty years old.
No doubt: forty years old.
Destiny: fifty years old. (The Analects of Confucius: Confucius said: "I am determined to learn five times out of ten, standing at thirty, not confused at forty, knowing my destiny at fifty, obeying my ears at sixty, and doing what I want at seventy, not exceeding the moment." “）
The year of knowing right and wrong: fifty years old. ("Huai Nan Zi Yuan Dao Xun": "Bo Yu is fifty years old, but he has not been for forty-nine years." It is said that there was a Bo Yu in the Spring and Autumn Period who constantly reflected on himself. By the age of 50, he knew the mistakes of the previous 49 years, so later generations used "knowing right and wrong" to call him fifty. )
Age of hearing and flower: 60 years old. Since ancient times, our country has used heavenly stems and earthly branches to date each other intricately, which can form sixty pairs of branches, so it is called "sixty branches" or "sixty flowers", so sixty years old is also called "the year of sixty flowers". )
Gu Xi: Seventy years old. (Du Fu's "Two Poems of Qujiang": "Wine debts are common, and life is 70 years old." )
The year of the rod dynasty: eighty years old.
The year of backbreaking: 80 to 90 years old.
Octogenarian: eighty or ninety years old. ("Book of Rites Quli": "890 Yue Yao." According to this explanation, people use the word "octogenarian" to refer to eighty or ninety years old. )
Yi: A centenarian. ("Book of Rites Quli": "A hundred years is a long time." It means that life lasts for a hundred years, so it is called "the year of life." Yuan Chen Hao explained: "Life lasts for a hundred years, so it is a period; Eating and drinking are all moving, so I am embarrassed. " )
References:
Baidu encyclopedia-ten days