Is fortune telling based on the lunar calendar or the solar calendar?

According to the lunar calendar, because China has fortune telling, there is no solar calendar. The solar calendar was introduced to China very late, but it is different from the traditional lunar calendar. Generally, the traditional lunar calendar has passed its 30th anniversary, and the first day of the New Year enters a new year. However, fortune-telling takes beginning of spring as the beginning of the new year, and the month of each month is determined by the beginning of 12 of the 24 solar terms. For example, beginning of spring is the first month and has arrived. Especially the eight characters are very strict. If the time is wrong, it's all wet.