Both days are not the best, but according to your horoscope, Jiachen day is better. Your zodiac sign Ren Shui is born in the month of Hai, which shows that the sun is strong, and you like earth and embankments. When encountering fire, it can increase warmth and remove cold. Likes to use fire and earth. On Jiachen day, Jiamu consumes water, Chentu Tomb Renshui is better than Renyin, Renyin is as good as Sun Lord, and the water is uncontrolled and overflows.
Haha, someone mentioned Ren and Yinhe above. This is the first time I heard that the heavenly stems can also combine with the earthly branches. . .