What's the date of March 15 in the lunar calendar?

According to the calendar data in 2023, 15 in the third month of the lunar calendar is May 4th in the solar calendar, which is Youth Day, Thursday.

Lunar calendar is the current traditional calendar in China, which belongs to the combined calendar of yin and yang, that is, the combined calendar of lunar calendar and solar calendar. According to the change cycle of the moon phase, each moon phase changes to one month, taking the solar tropical year as the length of a year, and adding 24 solar terms and setting leap months to make the average calendar year adapt to the tropical year.