Prime Minister Alexis Tsipras says he's "confident" about progress in renegotiating Greece's debt at a crucial eurozone meeting.
The left-wing government of debt-hit Greece wants to end a punishing austerity program agreed to by their centre-right predecessors in return for international bailout funds.
"We don't need money, we need time to realise our reform plans," Tsipras was quoted as saying by German news weekly Stern on Sunday.
"I promise you Greece will be a different country in six months."
Monday's meeting of eurozone finance ministers in Brussels will be a high-stakes gamble that could see Greece forced out of the eurozone if a deal is not found by the end of the month.
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"I expect difficult negotiations on Monday. However, I am confident," Tsipras said.
"I draw strength from the support of the people."
He also said: "I'm looking for a solution in which all sides win. I want a win-win solution. I want to save Greece from tragedy and prevent Europe from being divided."
To reach a deal, Greece will need the backing of Europe's biggest economy and effective paymaster, Germany.
Speaking about his brief meeting last week with German Chancellor Angela Merkel, Tsipras said: "I perceived her as a polite person. She is not as strict as the media make her out to be."
Above all, he said, he saw Merkel as a pragmatist who would not want to jeopardise the future of Europe.
