london britain government say thursday would use legislation fix time date country european union exit address concern brexiteers fear slow negotiations opposition divorce could cause delay government say propose change eu withdrawal bill currently make way parliament set exit 2300 gmt march 29 2019. listen members public parliament make change remove confusion concern exit day mean brexit minister david davis say statement date previously imply fix two-year negotiate period trigger march 29 2017 explicitly state law prime minister theresa may team battle keep exit negotiations eu move amid grow concern talk yet begin transitional deal smooth exit businesses complex term future trade deal home may government face rough ride parliament withdrawal bill form central plank brexit strategy lose parliamentary majority ill-judged election june may unite conservative party deeply split leave eu rely support small northern irish party get bill without defeat decision define date brexit law come clear statement government prepare consider concessions even propose political opponents important step demonstrate pragmatic approach vital piece legislation davis say mps members parliament improve bill whatever party work bill begin late stage journey parliament tuesday wednesday lawmakers debate vote 186 page change far propose bill early stage expect take months make way house parliament britain agree set eu 'exit day law