New Year's Eve, also known as New Year's Eve, New Year's Eve, New Year's Eve, New Year's Eve, and Big Dark Day, refers to the night of the last day of the lunar year, that is, the night before the Spring Festival[1]. The exact date of this day varies according to the calendar. Traditionally, the Chinese character cultural circle uses the lunar calendar as the calendar. Since the 12th month of the lunar calendar is mostly a big month with 30 days, it is also called New Year's Eve.