There is still a good chance that a Brexit trade deal can be struck in the coming days, Foreign Affairs Minister Simon Coveney has said.
The news comes as both the European Union and Britain race to avoid a turbulent climax to the divorce deal in less than four weeks time.
The United Kingdom leaves the EU's orbit on December 31, when a transition period of informal membership ends.
This follows on from its formal departure last January, and the sides are trying to secure a deal to govern nearly $1 trillion in annual trade.
"It's the time to hold our nerve and trust [EU chief negotiator] Michel Barnier.
"And I believe if we do that, there's a good chance that we can get a deal across the line in the next few days," Mr Coveney told Newstalk Radio.
"There will be no further extensions. There will be no extra time."
The negotiators have been going back and forth for weeks over three main issues that remain unresolved: fisheries, economic fair play and settling disputes.
Failure to secure a deal would snarl borders, spook financial markets and disrupt delicate supply chains that stretch across Europe and beyond - just as the world grapples with the vast economic cost of the COVID-19 outbreak.
British Education Secretary Gavin Williamson said good progress was being made that but Prime Minister Boris Johnson's government will not sign up to a deal that is not in Britain's interest.
"I'm confident from what I hear that progress, good progress is being made but we're going to do a deal that is right for Britain, if such a deal is available," Mr Williamson told Sky.
"If such a deal isn't available then we're not going to sign up to something that is to our detriment."
