How to Eat Tet: Banh Chung Basics plus Easy Recipes to Celebrate Lunar New Year On an annual basis around this time of year, Vietnamese people everywhere gear up to greet one another with “Chúc Mừng Năm Mới!” (“Chook Moong Nahm Moy”!), which means Happy New Year! For 2021, according to the lunar calendar, the Year of the Ox kicks off on Friday, February 12. You can celebrate with Valentine’s Day this weekend, but also know that you can celebrate Tet (the Viet shorthand term for the holiday) for a week, for several weeks, or even for a month.