As far as I know, it should be built in January, February and March. But this picture was built in 65438+ 10, February and March.

As you know, Yin was built in the first month, Mao was built in February and Chen Jian was built in March. This is the summer calendar. The first month of the Shang calendar is ugly, the second month is cloudy and the third month is hairy. The Zhou calendar was built in the first month, ugly February and Yin San month. The Qin calendar was established in the first month, February and March. The so-called building is to build right, that is, to determine which month is the "first year of the year." Xia, Shang, Zhou and Qin dynasties are very different. In the Han dynasty, the summer calendar was restored, that is, the lunar calendar was used as the beginning of the year (Wu Zetian changed it to Hejianzi), and it has been used ever since. Look at this picture. It's the orientation map corresponding to the moon, so it's good to use it correctly. If the preface to Zhouyi is wrong, it will change the beginning of the year of the Zhou Dynasty after the winter solstice, and it will be a positive child. I don't know what this picture is for, so it's hard to explain right or wrong.