The starting date of Chinese New Year is determined by the lunisolar calendar used traditionally in China and other peoples who have been influenced by culture, as Korean, Japanese or Vietnamese. The New Year celebration may have had a common origin with similar festivities elsewhere. The Chinese New Year falls on the day of the new moon closest to the day midway between the Winter Solstice between 21 and 23 December and the Spring Equinox between 20 and 21 March in the northern hemisphere. That day midway between those two dates falls between 3 and 5 February, a date that is approximately 45 days after the Winter Solstice, and 45 days before the Spring Equinox. In the calendar of the 24 year solar stations, that day is called equidistant Beginning of Spring.
The Chinese New Year is set first in a new moon day according to the lunar calendar, but the 24 solar stations are fixed based on the position of the sun in the zodiac. So both days often do not fall on the same date, and is equidistant on New Year only if that day is the day of the new moon, otherwise, be taken as a day of new year day of the moon new closer to the date specified, which can be from 21 January or 21 February. The beginning of spring is called in Chinese tradition.
