As the original Brexit departure date approaches, it is key to note that last week Theresa May was granted an extra two weeks to find a Brexit solution after talks with EU leaders. Originally Brexit was due to commence this week on 29th March 2019. However if Theresa May can get her withdrawal deal through parliament the final Brexit date will be pushed to 22nd May 2019 to give time to pass necessary legislation. If said deal is not agreed, the UK will be leaving the EU on 12th April.
For extended information on this subject find a detailed article here