Tết ( or ), or Vietnamese New Year, is the most important celebration in Vietnamese culture. The word is a shortened form of Tết Nguyên Đán (Nôm: ), which is Sino-Vietnamese for “Feast of the First Morning of the First Day”. Tết celebrates the arrival of spring based on the Vietnamese variation of the Chinese lunisolar calendar, which usually has the date falling between the months of January or February. Tết is generally celebrated on the same day as Chinese New Year, except when the one-hour time difference between Vietnam and China results in new moon occurring on different days. It takes place from the first day of the first month of the Vietnamese calendar (around late January or early February) until at least the third day. Many Vietnamese prepare for Tết by cooking special holiday foods and cleaning the house. These food includes bánh chưng, bánh dày, dried young bamboo soup (canh măng), giò and sticky rice. There are a lot of customs practiced during Tết, such as visiting a person’s house on the first day of the new year (xông nhà), ancestral worshipping, wishing New Year’s greetings, giving lucky money to children and elderly people, and opening a shop. Tết is also an occasion for pilgrims and family reunions. During Tết, Vietnamese visit their relatives and temples, forgetting about the troubles of the past year and hoping for a better upcoming year. They consider Tết to be the first day of spring and the festival is often called Hội xuân (spring festival).