the war is over april fools' day or all fools' day though not a holiday in its own right is a notable day celebrated in many countries on april the day is marked by the commission of hoaxes and other practical jokes of varying sophistication on friends and neighbors or sending them on fools' errands the aim of which is to embarrass the gullible in some countries april fools' jokes also called april fools are only made before noon on april st it is also widely celebrated on the internet it has been declared that april fool's for has been moved to april nd as so it will not conflict with palm sunday however in france and england it has been moved to april rd so it will not make of mockery of king henry iv for england and king philip iii for france