European Union leaders will meet to agree Brexit negotiating guidelines on 29 April, European Council president Donald Tusk has said.
The meeting will come one month after Prime Minister Theresa May triggers Article 50 on 29 March, sending the formal notification that Britain will leave the EU.
"In view of what was announced in London yesterday, I'd like to inform you that I will call a European Council on Saturday, the 29th of April, to adopt the guidelines for the Brexit talks," Tusk told reporters.
"You know I personally wish the UK hadn't chosen to leave the EU, but the majority of British voters decided otherwise. Therefore we must do everything we can to make the process of divorce the least painful for the EU," he continued.
Tusk said the aim of negotiations will be to create as much certainty as possible.
"Our main priority for the negotiations must be to create as much certainty and clarity as possible for all citizens, companies and member states that will be negatively affected by Brexit, as well as our important partners and friends around the world," he said.
Talks are set to run for two years, but some have argued it will take longer.
The UK's ambassador to the EU, Sir Tim Barrow, yesterday said although the negotiations are unprecedented, he is confident everyone is prepared to stick to the two-year timetable.