The term Western Balkans - an EU-creation - refers to Albania and those successor states of Yugoslavia which have not joined the EU yet.
British Prime Minister Boris Johnson said he had been "powerfully encouraged" by German Chancellor Angela Merkel's suggestion that a solution could be sought in the next 30 days.
May has promised to report back to parliament on her negotiations with the EU, when lawmakers are expected to hold a second vote on the Brexit deal.
Survey to which 4.6 million people responded, revealed 84 per cent of Europeans want to stop moving the clocks by an hour under daylight saving time.
EU action to support carbon capture and storage and innovative renewables has not succeeded, according to a new report from the European Court of Auditors.
Organizers hope over 100,000 people will gather to hear lawmakers from across Britain's political divide calling for a fresh referendum on Britain's negotiations to leave the EU.