Talks connected to Iran's nuclear program this weekend in Vienna have seen no breakthroughs being made.
However, the key players involved in the talks say they will continue until the July 20th deadline.
German Foreign Minister Frank Walter Steinmeier says the ball is in "Iran's court now".
"It is now up to Iran to decide whether to take the path of cooperation with the international community or if it wants to stay in isolation. I hope that the days left until July 20 will be used for further reflection in Teheran and that will lead to the signing of the comprehensive agreement but the ball is in Iran's court."
China is being represented at the talks by Vice Foreign Minister Li Baodong.
"Of course we have some difficulties, some hurdles so that is why we have to work together and in the spirit of cooperation and mutual respect so we urge all the parties to show their flexibility and a political will to reach an agreement as soon as possible and also we have hope, and hopefully that we can achieve that."
Iranian Foreign Minister Mohammad Javad Zarif.
"I will commit to everything and anything that would provide credible assurances for the international community that Iran is not seeking nuclear weapons, because we are not. We don't see any benefit in Iran developing a nuclear weapon."
There is growing speculation the July 20th deadline for an agreement will need to be extended.
The 20th is when a six-month interim deal will come to an end.
The parties are aiming for a deal that will limit the scope of Iran's nuclear program in exchange for a full end to nuclear-related sanctions against Tehran.
