To convert, you can look for it on some fortune-telling websites! /suanming/nongli.asp can be converted.
Tiangan: A, B, C, D, E, Ji, G, Xin, Ren and Gui.
Dizhi: Zi, Ugly, Yin, Mao, Chen, Si, Wu, Wei, Shen, You, Xu and Hai.
The heavenly stems are in front and the earthly branches are behind, starting from Jiazi and circulating once every 60 years.
At first, our ancestors only used the sky to record the days, because the days of a month were carried by the days; Remember the months with earthly branches, because ten months in a year exactly match ten earthly branches. Later, people thought that there would still be three days in a month when only the sky was dry to record the days, so it was more troublesome to record the dates with one sky and one earth branch in turn and calculate the specific dates. And it will be repeated all year round. Now people can calculate the year.