▁On ▁ 2 9 ▁March ▁ 2 0 1 7 , ▁ar ising ▁from ▁a ▁decision ▁by ▁the ▁Parliament ▁of ▁the ▁United ▁Kingdom , ▁Prime ▁Minister ▁Ther esa ▁May ▁invoked ▁Article ▁ 5 0 ▁in ▁a ▁letter ▁to ▁the ▁President ▁of ▁the ▁European ▁Council , ▁Donald ▁T usk . ▁The ▁UK ▁was ▁due ▁to ▁ce ase ▁being ▁a ▁member ▁at ▁ 0 0 : 0 0 , ▁ 3 0 ▁March ▁ 2 0 1 9 ▁Br uss els ▁time ▁( UTC + 1 ). ▁Following ▁the ▁UK ▁Parliament ' s ▁dec isions ▁not ▁to ▁rat ify ▁the ▁Bre x it ▁withdraw al ▁agreement ▁negoti ated ▁between ▁the ▁European ▁Council ▁and ▁the ▁UK ▁government , ▁several ▁extensions ▁of ▁the ▁dead line ▁were ▁agreed . ▁ ▁Following ▁a ▁decis ive ▁election ▁victory ▁for ▁Prime ▁Minister ▁Bor is ▁Johnson ▁and ▁the ▁Conserv ative ▁Party ▁in ▁December ▁ 2 0 1 9 , ▁the ▁UK ▁Parliament ▁rat ified ▁the ▁European ▁Union ▁( With draw al ▁Ag re ement ) ▁Act ▁ 2 0 2 0 , ▁appro ving ▁the ▁terms ▁of ▁withdraw al ▁as ▁formally ▁agreed ▁between ▁the ▁UK ▁government ▁and ▁the ▁EU ▁Commission . ▁After ▁the ▁European ▁Parliament ▁rat ified ▁the ▁agreement ▁on ▁ 2 9 ▁January , ▁the ▁United ▁Kingdom ▁with d rew ▁from ▁the ▁European ▁Union ▁at ▁ 2 3 : 0 0 ▁London ▁time ▁( G MT ) ▁on ▁ 3 1 ▁January ▁ 2 0 2 0 , ▁with ▁a ▁withdraw al ▁agreement ▁in ▁place . ▁ ▁Adv oc ates ▁in