It is recommended to start groundbreaking after three o'clock, because from twenty-three o'clock to one o'clock is Zi, and from one o'clock to three o'clock is Chou hour. Zi and Chou
It is the water of the north, and earth overcomes water, which is unlucky. , Three o'clock to five o'clock is the Yin hour, and the direction northeast of the Gen Gua is earth, so you can move the earth. Do not move the earth at the exact three o'clock. The three o'clock is the dividing line between water and soil, so it is not suitable for major events. Therefore, it is recommended to start groundbreaking after three o'clock.
Yixue research, for reference only