Choose an auspicious day, which is based on the heavenly stem or the earthly branch.

Heavenly stems and earthly branches, referred to as "dry branch". A, B, C, D, E, Ji, G, Xin, Ren and Gui are called "ten heavenly stems", while Zi, Ugly, Yin, Mao, Chen, Si, Wu, Wei, Shen, You, Xu and Hai are called "twelve earthly branches", and the heavenly stems are based on years and earthly branches.