The so-called birthday refers to the year, month, day and hour. The heavenly stems and earthly branches of these four pillars is 4X2=8, so it is called horoscope.
If there is no time, there will be 12 hours a day without a column or two. If there is only one date, there are twelve possibilities, and the eight characters are irregular and cannot be calculated, because life is much worse than an hour.
===
Secondly, even so, you can consider taking the sun column alone, and the one above is his.
Gregorian calendar:1March 29th, 989 (Wednesday)
Lunar calendar: February 22nd.
Eight characters: the lack of Ding Mao's five sons.
Five elements: soil, fire, wood, soil and water are short.
Gregorian calendar: 1989 September 1 (Friday)
Lunar calendar: Shi Mao was on the second day of August in the past year.
Eight characters: I always miss Jiazi.
Five elements: soil, fire, water, gold, wood and water are short.
= = = = Single solar column
Five sons to Jiazi
Bentu, Jiamu, Muketu
Divide water, divide water and water are the same.
====
Although there are grams, there are the same ones, not bad, not bad.
My level is limited. I can only read one daily column. Please forgive me.
====
for reference only