The Chinese calendar is a lunisolar calendar that is used to determine important festival dates, such as Chinese New Year. It is based on exact astronomical observations of the sun's longitude and the Moon's phases.
As with the Calendar Wikia, the text of Wikipedia is available under Creative Commons License. The Chinese calendar is a lunisolar calendar, akin to the Hebrew calendar & Hindu Calendar, incorporating elements of a lunar calendar with those of a solar calendar.
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The traditional calendar are also often referred to as "the Xia Calendar".
However, strictly speaking the Xia Calendar is not the same as the present calendar and refers instead to its earliest predecessor.
In China today, the Gregorian calendar is used for most day to day activities, but the Chinese calendar is still used for marking traditional Chinese holidays such as Chinese New Year (Spring Festival), Duan Wu festival, and the Mid-Autumn Festival, and in astrology, such as choosing the most auspicious date for a wedding or the opening of a building.
Because each month follows one cycle of the moon, it is also used to determine the phases of the moon.
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Although the People’s Republic of China uses the Gregorian calendar for civil purposes, a special Chinese calendar is used for determining festivals. The Chinese calendar is based on exact astronomical observations of the longitude of the sun and the phases of the moon.
Various Chinese communities around the world also use this calendar. Legend has it that the Emperor Huangdi invented the calendar in 2637 B. This means that principles of modern science have had an impact on the Chinese calendar.
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