Saint Valentine's Day, commonly shortened to Valentine's Day, is an annual commemoration held on February 14 celebrating love and affection between intimate companions.
Christmas or Christmas Day is an annual commemoration of the birth of Jesus Christ, celebrated generally on December 2 as a religious and cultural holiday by billions of people around the world.
New Year's Day is observed on January 1, the first day of the year on the modern Gregorian calendar as well as the Julian calendar used in ancient Rome.