Is the Indian calendar the same as that of China?

India uses advertising calendars. Like China, China also used the AD calendar in the early 20th century, so the Indian calendar is the same as that of China. The Indian calendar is the official unified calendar of India formulated by the Indian government in 1957 to unify all parts of India. It is a kind of solar calendar, the number of days in each year is consistent with the Gregorian calendar, and the leap year setting is also consistent with the Gregorian calendar, but the month setting is based on the zodiac. There are six seasons in a year, and each season has two months. Seasons are set as spring, summer, monsoon season, autumn, winter and dew season.