202 1 12.26 when is the first day of the lunar calendar?

202165438+February 26th, 23rd day of the twelfth lunar month.

Gregorian calendar date: 202 1 year1February 26th (202 1 year 65438+February 26th); Lunar calendar date: winter 23rd in the year of Xin Chou.

Lunar calendar is the current modern 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, and the reference solar year is the length of one year, 24 solar terms are added, and leap months are set to make the average calendar year adapt to the tropic year.