Brexit supporters wave Union flags and a mask of Britain's Prime Minister Boris Johnson as the time reaches 11 O'Clock, in Parliament Square, venue for the Leave Means Leave Brexit Celebration in central London on January 31, 2020, the moment that the UK formally leaft the European Union. - Brexit supporters gathered outside parliament on Friday to cheer Britain's departure from the European Union following three years of epic political drama -- but for others there were only tears. After 47 years in the European fold, the country leaves the EU at 11:00pm (2300 GMT) on Friday, with a handful of the most enthusiastic supporters gathering opposite the Houses of Parliament 12 hours before the final countdown. PHOTO: DANIEL LEAL-OLIVAS / AFP