"Tết", short for "Tết Nguyên Đán",or Vietnamese Lunar New Year is the most important celebration in Vietnamese culture. Tết celebrates the arrival of spring based on the Vietnamese calendar, which usually has the date falling in January or February in the Gregorian calendar. Vietnamese people celebrate the Lunar New Year annually, which is based on a lunisolar calendar. Tết is generally celebrated on the same day as Chinese New Year (also called Spring Festival), except when the two-hour time difference between Vietnam and China results in the new moon occurring on different days. Many Vietnamese prepare for Tết by cooking special holiday food and cleaning the house. These foods include "bánh tét", chưng cake, "bánh dày", "canh khổ qua", dried young bamboo soup (canh măng), "giò", and "xôi" (sticky rice). Many customs and traditions are practiced during Tết, such as visiting a person's house on the first day of the new year, wishing New Year's greetings, giving lucky money to children and elderly people, opening a shop, visiting relatives, friends and neighbors. Tết Nguyên Đán is also an occasion for family reunions. They start forgetting about trouble of the past year and hoping for a better and happier upcoming year. This festival can also be referred to as "Hội xuân" in vernacular Vietnamese.
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