BRDO, Slovenia, Oct 6 (Reuters) - German Chancellor Angela Merkel on Wednesday rejected calls to set a date for the accession of Western Balkans countries into the European Union. "I don"t really believe in setting dates, I believe in making good on our promises: Once the conditions are met the accession can take place," Merkel told reporters after the EU"s Balkans summit in Slovenia. A deadline would put the EU under pressure, no matter if Western Balkans fulfilled the conditions set out by the 27-nation bloc or not, she said. Reporting by Sabine Siebold in Brdo and Paul Carrel in Berlin Our Standards: The Thomson Reuters Trust Principles.