Hanoi New Year, also known as Tet, is the most important holiday in Vietnam. It is celebrated on the first day of the first month of the lunar calendar and marks the beginning of a new year. Tet is a time for family reunions, traditional customs, and festivities. People often decorate their homes with flowers and plants, and exchange gifts with friends and family. During this time, many people travel to their hometowns to celebrate with their loved ones.