New Year's Dayor Tet, or International New Year (English: New Year's Day, New Year's or New Year) is a public holiday that takes place on January 1, the first day of the year of the Gregorian calendar as well as the Julian calendar, which is an important holiday of the year for many peoples and cultures around the world.

New Year's Day can be considered the largest general holiday, usually with fireworks fired at midnight when the New Year begins in the time zone. New Year's Day traditions around the globe include new year's resolutions, church services and going to church or calling friends and family, celebrating.