Boris Johnson is putting up a Brexit countdown clock in his office in 10 Downing Street.
The digital timepiece was delivered to No10 today 91 days before the Prime Minister claims we will leave the EU, "do or die".
It is the second countdown clock known of publicly, after one was already put up in Conservative Campaign HQ.
It is understood the clock will be in Mr Johnson's office in No10.
A source insisted no taxpayers' money has been spent on the publicity stunt - though did not immediately say who paid for it.
Similar items sell online for more than £500.
The gizmo by Oxfordshire firm Wharton Intelligent Time Systems includes 2in high red digits that can be read from 75ft away.
It will state the number of days, hours and minutes remaining until 11pm on October 31, the legal time at which Brexit happens.
The package arrived at Number 10 a day after Tory Party chairman James Cleverly unveiled a countdown clock at Conservative Campaign Headquarters (CCHQ).
The clock in Matthew Parker Street is displayed below a message which reads: "We will have delivered Brexit and left the EU by...".
Prime Minister Boris Johnson is set to chair his first exit strategy (XS) committee on Thursday afternoon as the Government ramps up its planning for a no-deal Brexit.
He was slammed for setting aside £2.1billion funding for no-deal Brexit preparations - bringing the total spending on No Deal above the £6billion mark.
The Treasury has earmarked £344 million to spend preparing the UK Border for the chaos of a no-deal Brexit, including 500 extra Border Force officials.
And cash will be spent improving transport infrastructure around the Kent coast to deal with massive tailbacks at Dover.
The Government will spend a further £434 million to ensure the supply of vital medicines if trade routes break down.
And more than £100 million will be spent on an ad campaign to encourage Brits to prepare for the worst-case Brexit scenario.
Some £1.1 billion of the cash will be available immediately - with a further £1 billion available for Government departments to bid on as necessary.
Number 10 insiders now believe leaving without a deal is the most likely outcome, despite Boris Johnson saying publicly it was a “million to one” just days ago.
Shadow chancellor John McDonnell slammed the spending as an "appalling waste of tax-payers' cash".
He added: "All for the sake of Boris Johnson's drive towards a totally avoidable no-deal.
"This government could have ruled out no-deal and spent these billions on our schools, hospitals and people."
