What calendar did China use before the founding of New China?

There were 102 calendars in the history of China from the Huangdi calendar to the opening of the solar calendar in the late Qing Dynasty. Before the Han dynasty, there were relatively unified calendars such as Xia calendar, Shang calendar and Zhou calendar, but they were all 366 days. At the beginning of Han Dynasty, the calendar of China took a great turn and the national calendar was unified. Since then, Emperor Wu of the Han Dynasty instructed Sima Qian and others to write taichu calendar. After the founding of the Republic of China, the Gregorian calendar or the calendar year of the Republic of China was adopted.