1: Yang was born in the solar year.
2. Birth is dry, and Yang is Yang.
Generally speaking, it is mainly based on the dryness of one year. For example, the eight characters you provided are:
Year: Jiazi
Month: Gui You
Day: Renzi
Time: Ding Wei
A year's work is one yang, and a day's work is one yang.
Of the ten stems, five are Yang (A, C, E, G, N) and five are Yin (B, D, F, G, D).
Is a person's horoscope yin or yang?
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Generally speaking, it is not important, what's more, Yang is better than Yin. It is just needed when analyzing the eight characters.