Theresa May has been warned that point is operating out to safe a Brexit deal as she prepares to face the opposite 27 EU leaders at a summit in Brussels.
The PM will transient all her counterparts for the final time earlier than October, when each side hope a deal will probably be achieved on the UK's March 2019 departure.
But Irish chief Leo Varadkar mentioned the dearth of progress was "disappointing".
He mentioned he anticipated fellow leaders to ship a "strong message" to Mrs May that talks needed to "intensify".
The prime minister, who has been beneath unrelenting strain at residence inside her personal party, has referred to as her cupboard collectively for what has been billed as a make-or-break assembly at Chequers on 6 July to agree the UK's blueprint for its future relations with the EU.
Divisions over the UK's customs preparations after December 2020, when the transition interval agreed with the EU is because of finish, have but to be resolved, as have arguments over the longer term motion of products and folks throughout the border between Northern Ireland and the Republic of Ireland.
Mrs May's former high aide, Nick Timothy, has urged her to face down her opponents in the cupboard, telling the Daily Telegraph the "time for playing nice and being exploited are over".
With lower than 9 months to go earlier than the UK's scheduled exit, main companies have mentioned the time has come for readability and issued warnings in regards to the impression on jobs of leaving the EU with out an settlement.
'Strong message'
The prime minister will maintain a variety of face-to-face conferences with European counterparts on day one of many two-day summit, the principle focus of which will probably be on the migration challenges dealing with Europe and eurozone reform.
The remaining 27 EU leaders will talk about Brexit on their very own on Friday morning, by which level Mrs May is predicted to have left Brussels.
On the eve of the summit, Mr Varadkar mentioned he wished "detailed proposals" from the UK on how it could honour the "clear commitments" made in December in regards to the Irish border and residents' rights.
Persuasion, not element
By the BBC's political editor Laura Kuenssberg
There is not any expectation that the prime minister will arrive in Brussels with a magic key to unlock the Brexit course of.
But Theresa May heads to the Belgian capital later with a promise no less than that inside 10 days that she can have been in a position to persuade her cupboard to agree extra of the UK's imaginative and prescient for all times outdoors the EU.
And that she is going to be capable of put a detailed and bold imaginative and prescient into phrases in a White Paper to be revealed not lengthy afterthe UK's blueprint of how commerce, customs, agriculture, and so many different areas may work after Brexit.
That, she hopes, in mid-July will usher in a real dialogue in regards to the long-term relationship between the nation and the remainder of the continent.
This summit subsequently isn't about technical negotiations, however about guarantees and persuasion, for the prime minister to convey that she is in cost of her agenda.
"Time is running out for the Withdrawal Agreement to be concluded satisfactorily by the October European Council," he mentioned.
"I expect EU leaders to send a strong message to the UK that negotiations with the taskforce need to intensify."
The EU's negotiator Michel Barnier has mentioned "serious divergences" stay over the query of backstop preparations for the Irish border if neither of the UK's proposed customs proposals are deemed workable.
'Solidarity'
Elsewhere, Mrs May will search to point out solidarity with the remainder of Europe in their efforts to cope with unlawful migrant flows throughout the Mediterranean from Africa and the Middle East.
The problem has divided Europe for greater than two years however tensions have elevated because the election of a populist authorities in Italy, which has pledged to crack down on illegal migration, and rising political uncertainty in Germany amid a backlash towards Chancellor Angela Merkel's immigration insurance policies.
Mrs May is predicted to emphasize the necessity to sort out the issue of individuals smuggling at its source, citing the success of a challenge in Nigeria the place as soon as the hazards of crossing the Mediterranean have been defined to individuals, their attitudes to unlawful working in the UK modified.
On safety, the prime minister will name for collective motion towards the misinformation, cyber warfare and cash laundering by "hostile states" akin to Russia. One instance of this, she is going to say, is the UK's sharing of particulars of Russian intelligence officers expelled after the assaults on Sergei and Yulia Skripal in Salisbury with EU allies.
The working dinner will coincide with England's last World Cup group sport towards Belgium, whose prime minister Charles Michel can even be current.
The UK's everlasting consultant in Brussels could not say how a lot of the match Mrs May, who on Wednesday ordered St George's flags to be flown above No 10 for remaining England video games, would see.