'From January 1, 2021, we will embark on the next chapter in our history as a fully independent United Kingdom," British cabinet minister Michael Gove told the London parliament yesterday.
"Regardless of the outcome of the negotiations with the EU over our future relationship, whether or not we have a Canada-style deal or an Australian model, we will be leaving the single market and the customs union," Mr Gove added.
Back in Dublin, Simon Coveney, who has been on the "Brexit beat" for three solid years, said he expected some kind of EU-UK post-Brexit deal was likely to emerge from the sluggish negotiations which are ongoing.
Agreement on anything is scarce right now, but all sides believe the deal groundwork has to be laid in the second half of this month. Any deal has to be concluded by October if it is to get necessary ratification from member states and the European Parliament by the witching hour of December 31 next, when the UK's transition period on EU membership ends.
All eyes will be on the EU leaders' face-to-face summit in Brussels this Friday and Saturday. There, Micheál Martin will hope for some kind of political impetus to put some pep into proceedings.
But the real focus will be on next Monday when senior officials and politicians take a direct hand in these Brexit talks. There is a feeling that technical experts who have been talking for several weeks have done what they can and a political breakthrough is required.
The Brussels view remains that the UK wants continued EU market access without the constraints of promising not to undercut their neighbours on things like workers' rights, the environment and state aid to companies. It is largely accepted in EU circles that London will not accept the European Court of Justice as an arbiter in disputes over trade and other issues.
So, a replacement system of dispute resolution must be found which is accessible and swift. That requires some changes of mood in London and a conditioning towards compromise in the UK Conservative Party especially.
On Sunday, and again yesterday, the London focus was on preparing the UK for new customs and trade controls. These are about installations on the island of Britain, with particular emphasis on Dover and other ports on the south coast, which are the gateway to mainland Europe with more than £700m (€775m) to be spent on customs.
We are still waiting for further details on how "the border in the Irish Sea" will be managed - as Ireland has a guarantee there will be no checks on the north-south Border here. Mr Gove said the Government's border model does not cover the Northern Ireland protocol.
"Let me reassure the House the guidance specific to Northern Ireland will be published in the coming weeks and on an ongoing basis throughout the transition period," he said.
With five and a half months left to go to the deadline, UK businesses are bracing themselves for a wave of form-filling and bureaucracy if they are to continue trading with their former EU partners. Everyone knows there will be extra costs - the only questions are how much and how these can be phased in.
But Ireland's situation is probably even more perilous. No other EU country is more exposed to the Brexit economic fallout.
Ireland's concerns come amid the swiftest onset recession ever to hit the State. There was full effective employment at the end of February and now almost one in four workers is dependent on welfare.
Huge Brexit economic disruption will land amid post-coronavirus economic carnage.
UK Prime Minister Boris Johnson continues his bluster and spoof. Asked about Brexit pushing up UK business costs, he batted questions away.
"I think one of the amazing things about the last few months, the whole Covid crisis, is I think it's put all those questions very much into perspective," he said.