No, April Fools' Day is not an official national holiday in any country. April 1 is an informal celebration observed mainly in the United States, Canada, Ireland, Australia, New Zealand and Britain. In France it is known as Poisson d'Avril (April Fish). April Fools Day is celebrated by playing pranks on family and friends. People also share funny messages on social media or send fake news stories to each other. Since April Fools' Day is not a public holiday, stores and public services remain open for business. Despite its informal status, April Fools' Day is a popular annual celebration that has been celebrated for centuries in different forms around the world and is still widely observed today.