April Fools' Day is celebrated in the Western world on April 1st of every year. Sometimes referred to as All Fools' Day, April 1st is not a legal holiday, but is widely recognized and celebrated as a day which tolerates practical jokes and general foolishness. The day is marked by the commission of good humoured or funny jokes, hoaxes and other practical jokes of varying sophistication on friends, family members, teachers, neighbors, work associates, etc.