About: Tet holiday

Tết, short for Tết Nguyên Đán, is the most important celebration in Vietnamese culture. Tết celebrates the arrival of spring based on the Vietnamese calendar and usually has the date in January or February in the Gregorian calendar. Tết Nguyên Đán is not to be confused with Tết Trung Thu, which is also known as Children's Festival in Vietnam. "Tết" itself only means festival but is often colloquially known as "Lunar New Year" in Vietnamese, as it is often seen as the most important festival amongst the Vietnamese and the Vietnamese diaspora, with Tết Trung Thu regarded as the second-most important. Vietnamese people celebrate Tết annually, which is based on a lunisolar calendar. Tết is generally celebrated on the same day as Chinese New Year, with the one-hour time difference between Vietnam and China resulting in the new moon occurring on different days.