Iran and six world powers reached an agreement Sunday on how to implement a short-term deal that was struck in November and gives the parties six months, beginning Jan. 20, to reach a long-term agreement about Iran’s nuclear program.

The Islamic Republic will open its nuclear program to daily inspection by international experts, starting the clock on the six months to reach a final nuclear agreement. In exchange, Iran will get a relaxation of the economic sanctions that have been crippling its economy.

Senior officials from the European Union and Iran met in Geneva on Thursday and Friday to iron out remaining practical questions related to the implementation of the Nov. 24 deal, under which Iran agreed to curb its most sensitive nuclear work in return for some relief from Western sanctions.

Western powers suspect Iran has been trying to develop the ability to manufacture a nuclear weapon, but Iran has always said that its program is purely for civilian energy needs.

"Capitals have confirmed the result of the talks in Geneva ... The Geneva deal will be implemented from Jan. 20," Marzieh Afkham, spokeswoman for the Iranian Foreign Ministry, told reporters in Tehran, according to the state's semi-official Mehr news agency.

U.S. and E.U. officials also confirmed the date and said the sides would now ask the United Nations' nuclear watchdog to verify the deal's implementation.