Liz Truss has been named the next Prime Minister of the UK - the fourth Tory in six years.
The announcement this lunchtime kick-starts a flurry of activity in government to organise the handover of power.
Not only does the new PM have to fly to Balmoral (not Buckingham Palace) to meet the Queen, they have a Cabinet reshuffle and PMQs.
Not to mention the big “tsunami” facing millions of Brits - the cost of living disaster that is due to hit this winter.
Liz Truss won by the tightest margin in Tory history since current rules - forcing a vote by members - were introduced in 1998.
She scored 57% compared to 66% for Boris Johnson, 68% for David Cameron and 61% for Iain Duncan Smith. Theresa May was anointed after her rival dropped out.
At least one thing is off the table. She appeared to rule out an early general election - by claiming there will be a “great victory for the Conservative Party in 2024”.
We take you through an hour-by-hour guide of how the coming days could unfold.
Monday: Boris Johnson’s last night in No10
After the 12.30pm announcement, Boris Johnson will spend his 1,139th and last night in office.
He has based himself at Chequers in his final weeks, but could choose to kip in the Downing Street flat - where his belongings have already been moved out.
The lame duck PM’s final acts include calling Ukraine ’s President Zelenskyy and pushing the case for a medal for Britain’s nuclear test veterans.
In a victory for the Mirror, which has campaigned for vets to be honoured, he urged the Government to “look again at the case for medallic recognition”.
Meanwhile Liz Truss will be putting the final touches to her team and talking to MPs and allies as she prepares to take office.
Tuesday: Boris Johnson resigns and Liz Truss takes office
At 8.30am Boris Johnson will give a brief farewell speech outside Downing Street before flying to Balmoral to hand his resignation to the Queen late morning.
Liz Truss will follow him on a separate plane and meet the Queen at around noon, officially becoming Prime Minister in a private audience.
At around 4pm Ms Truss is expected to give her first speech in Downing Street - outside, or indoors if it’s pouring with rain - spelling out her vision for Britain.
Theresa May vowed to stamp out "burning injustices" in her first speech, while Boris Johnson put a plan for social care that didn’t exist in his address.
It’s thought the pair could swap planes on their journeys to and from Scotland, so the sitting PM always gets an official jet, but No10 would not confirm details.
A Cabinet reshuffle has already been plotted out, and could begin on Tuesday night or wait until Wednesday morning.
Liz Truss will write the letters of last resort to nuclear submarine captains. Her first foreign leader phone call will be to the President of war-ravaged Ukraine.
Wednesday: New Cabinet and PMQs
Liz Truss is likely to want her new Cabinet in quickly with Kwasi Kwarteng tipped for Chancellor, Suella Braverman for Home Secretary and other right-wingers in top jobs.
Reports have suggested the new-look top team could meet on Wednesday morning - usually around 9.30am.
The stumbling block will be whether she offers Rishi Sunak a job to appease the loser’s allies - and whether he accepts or, as he’s suggested, retreats to the back benches.
At noon she will face Keir Starmer for the first time at PMQs. Labour ’s leader could hammer her over her lack of clear messaging on cost of living help.
Thursday or Friday: Help for energy bills announced
Liz Truss has said she will announce help on energy bills by the end of the week.
Any plan needs to be signed off by Treasury officials so unless it’s oven-ready - which critics say it’s not - it appears unlikely this side of PMQs.
The new PM could choose to give a press conference or a statement to the House of Commons, or leave it to her new Chancellor.
We already know she will cut green levies on bills and National Insurance but this is branded a sticking plaster on an open wound.
Allies suggest she will give help to the most vulnerable and she has looked at freezing bills. But will it be enough?
TBC: Boris Johnson’s honours list
Boris Johnson was said to be planning two crony honours lists - putting uber-loyalist Nadine Dorries and ex-Daily Mail editor Paul Dacre in the Lords.
Mr Johnson has already created 43 Tory peers since he entered No10 - compared to 26 by Theresa May in less time.
Since taking office he has regularly issued “ad-hoc” political honours lists to bump up the second chamber, including several of his cronies.
But as a departing PM he can also issue a separate “Resignation Honours” list - despite being forced out in scandal.
No10 said there were still no fixed timings for his resignation honours, as this will be a matter for the new government.
Mid-September: Visits to Dublin and Ukraine
Liz Truss’s first foreign trips could be to Dublin or to Ukraine.
Civil servants have reportedly been tasked to draw up a meeting with Irish premier Micheal Martin in a bid to break the deadlock over the post-Brexit Protocol.
Ms Truss supports Boris Johnson’s plans to tear up the protocol - causing fury in the EU - to suspend checks on goods crossing from Britain to Northern Ireland.
She has also vowed to continue the UK’s support for Ukraine. Boris Johnson has previously visited Kyiv as a morale boost both for Zelenskyy and himself - could she do the same?
September 19: Her first trip Stateside
The week of September 19 marks the UN General Assembly in New York.
The new Prime Minister is widely expected to attend in what would be her first meeting with world leaders like US President Joe Biden.
She would however have to fly back in a hurry to watch her own emergency budget being delivered…
September 21: Rumoured Budget date
Liz Truss has repeatedly promised an “emergency budget” - later downgraded to a “fiscal event” after it emerged there won’t be official forecasts on the public finances.
It will formally reverse the National Insurance hike, cancel next year’s corporation tax rise from 19% to 25%, and pause green levies on energy bills for a year.
She has vowed to direct the £12bn-a-year from the National Insurance hike from the NHS into purely social care, despite axing the tax rise that funds it.
And she has vowed to launch a “full tax review”, looking at things like business rates, “full-fat” Freeports, inheritance tax, and tax rules for parents who stay at home with loved ones.
October 5: Tory conference speech and attack on workers
The new PM’s first major test will be at the Tory conference in Birmingham, exactly 30 days after taking office.
It’s little coincidence that this is the same time frame she’s given herself to publish a major assault on the right to strike.
She will force “minimum service levels” on workers in national infrastructure, raise the minimum threshold for strikes from 40% to 50%, and double the notice period from two to four weeks.
The Tory leadership favourite is also reportedly set to rip up rules covering the 48-hour working week in a bid to improve UK competitiveness.
This deadline could give her a jumping-off point for a populist - but deeply unpopular with unions and many workers - announcement in her keynote speech.
In an ironic twist, Liz Truss failed to meet the threshold she is planning to impose on workers voting for strike action.
Ms Truss has vowed within 30 days to raise the minimum threshold for strikes from 40% of all eligible voters to 50%. But she won the votes of 47% of eligible Tory members.
