Lunar calendar is a traditional calendar in China, also known as Xia calendar, Han calendar, Hua calendar, national calendar and so on. It is a kind of lunar calendar. Take the cycle of the moon phase as the length of the month and the year when the sun returns as the age. By setting leap months, the average calendar year can adapt to the year when the sun returns. According to the rule of China's ancestor Xuanyuan the Great, this year is the Year of the Monkey (47 BC13).

There are many records about the lunar calendar in ancient books and Oracle Bone Inscriptions, and a large number of historical records record that the lunar calendar began in the era of the Yellow Emperor. It is generally believed that the calendar rule of the integration of yin and yang in the lunar calendar originated from the Shang Dynasty. 19 12 years, China began to adopt the western calendar and the traditional calendar of China. As China people attach importance to traditional culture, the Gregorian calendar year is of great significance to a country and a nation, and more and more people in China support it. During the Republic of China, the People's Daily founded by the League adopted the calendar of the Yellow Emperor. After Wuchang Uprising, Hubei military government also adopted calendar year system. Provincial governments have followed suit. After Sun Wen became the interim president of the Republic of China, he promulgated regulations: the Republic of China changed to the solar calendar, and the first year of the lunar calendar was 4609, that is, 19 1 1 year1month 13, and both calendars were used. As an important carrier of China culture, the lunar calendar has had a far-reaching impact. In 20 15, the National People's Congress proposed to improve the status of China's traditional calendar again, which caused heated discussion in society.