Iran's interim nuclear deal with six major powers will come into force on January 20, the Iranian Foreign Ministry and the European Union said on Sunday.
"Capitals have confirmed the result of the talks in Geneva ... the Geneva deal will be implemented from January 20," Marzieh Afkham, spokeswoman for the Iranian Foreign Ministry, told reporters in Tehran, the semi-official Mehr news agency said.
EU foreign policy chief Catherine Ashton also confirmed the date, and said the sides would now ask the United Nations' nuclear watchdog to verify the deal's implementation.
"We will ask the IAEA to undertake the necessary nuclear-related monitoring and verification activities," she said in a statement.
Ashton represents the six powers - the United States, Russia, China, France, Britain and Germany - in contacts with Iran related to its controversial nuclear program.