Fiji's interim prime minister Frank Bainimarama says other countries will not have any influence on the Pacific nation's timetable for holding elections.
The Commonwealth Ministerial Action Group met in London on Wednesday and gave Fiji a six-month deadline to hold elections or face suspension.
In January, Pacific Island Forum leaders gave Fiji until 1 May to set a timetable for elections, or face suspension from the Forum.
New Zealand's Foreign Affairs Minister, Murray McCully says the Commonwealth has now backed this approach.
The Commonwealth Ministerial Action Group says it has issued its own timetable because it "deplores" Fiji's continuing contravention of Commonwealth "values and principles".
The group says it will formally suspend Fiji in September if satisfactory progress towards elections is not made and it could meet earlier.
But Commodore Frank Bainimarama told Radio Tarana in Auckland the Commonwealth might as well go ahead and suspend his country now.
"No one's going to interfere in what we're trying to do here - not New Zealand, not Australia, not anybody else."
Commodore Baiminarama says there will be no elections this year.
The elected government in Fiji was removed in a coup on 6 December 2006. It was the fourth coup since 1987.
Fiji is already banned from Commonwealth ministerial meetings due to the coup, but still receives technical aid from a number of countries. This aid would be halted if Fiji is fully suspended.
New Zealand Prime Minister John Key says Fiji's economy is going backwards and unless democracy is restored there will be little confidence in the economy.
Mr Key says everyday people in Fiji are paying the price for Commodore Bainimarama's refusal to hold elections.
