Happy April Fool’s Day 2025: On April 1 every year, the world becomes filled with pranksters who are eager to play tricks on one another and pull off practical jokes. This is all in celebration of April Fool’s Day, and this year, in 2025, it will be observed on April 1, Tuesday. Historically, the day came to be after Pope Gregory XIII adopted the Gregorian calendar in 1952 and proposed that the new calendar begins on January 1 with the New Year celebrated towards the end of March. Story continues below this ad However, the calendar shift from Julian to Gregorian began on April 1, making it the most widely accepted cause for honouring the day. While many refused to accept the shift and continued to use the Julian calendar, France was the first country to embrace and use the new calendar. From the archives: The best ‘April Fools Day’ announcements from top tech brands in 2024 So consequently, the legend goes, the ones who did not follow the new calendar were considered foolish and …