From : "Chinese New Year, also called Lunar New Year, annual 15-day festival in China and Chinese communities around the world that begins with the new moon that occurs sometime between January 21 and February 20 according to Western calendars. Festivities last until the following full moon."
From Wikipedia: "Chinese New Year (traditional Chinese: 新年, 中國傳統新年, 華人新年; simplified Chinese: 新年, 中国传统新年, 华人新年; pinyin: Xīnnián, zhōngguó chuántǒng xīnnián, huárén xīnnián), Spring Festival or the Lunar New Year, is the festival that celebrates the beginning of a new year on the traditional lunisolar Chinese calendar. In Chinese culture and East Asian countries, the festival is commonly referred to as Spring Festival (traditional Chinese: 春節; simplified Chinese: 春节; pinyin: Chūn Jié) as the spring season in the lunisolar calendar traditionally starts with lichun, the first of the twenty-four solar terms which the festival celebrates around the time of the Lunar New Year. Marking the end of winter and the beginning of the spring season, observances traditionally take place from New Year’s Eve, the evening preceding the first day of the year to the Lantern Festival, held on the 15th day of the year. The first day of Chinese New Year begins on the new moon that appears between 21 January and 20 February."
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