Hours prior to the divorce, UK Prime Minister Boris Johnson is set to address the nation, announcing the beginning of a new era for the country.
The prime minister will also have a cabinet meeting in Sunderland - the first city to support the leave motion in 2016, with more than 60 percent of the population voting in favour of Brexit.
As for the festive part of the divorce, Downing Street is expected to be lit up with a light show, and Parliament Square will be decorated with union flags.
Within the period, the UK will still have the same trade deals with the EU as before, but will be able to negotiate new trade deals with the bloc as well as with other countries. Besides that, the two parties - the UK and the EU, will have to seal a number of bilateral deals in various spheres, including security and fishing.