Political hostilities will be temporarily halted in the Commons as politicians gather to pay tribute to Nelson Mandela.
Question time has been suspended to allow MPs to honour the memory of the former South African president who died last week.
Speaker John Bercow will make the opening address, followed by words from David Cameron and other party leaders.
The Prime Minister will later fly to Johannesburg where he is among tens of thousands due at a stadium memorial service tomorrow.
Mr Mandela's funeral on Sunday will be attended by the Prince of Wales on behalf of the Queen. Buckingham Palace has announced.
With many MPs expected to want to commemorate South Africa's first black president, the rest of the day's House business may also be scrapped.
Mr Cameron is among world leaders and celebrities due to join t ens of thousands of ordinary mourners at the Soweto stadium tomorrow.
The FNB Stadium was the scene of the anti-Apartheid leader's last public appearance - the closing ceremony of the 2010 Football World Cup.
Dozens of world leaders and heads of state have already confirmed their place at what is set to be one of the best-attended such events in history.
Sir Richard Branson and singer Peter Gabriel - who devised "The Elders" forum of statesmen and activists set up by Mr Mandela - are also due.
It is part of a week of commemorative events leading up to the state funeral and interment in the ex-president's childhood village of Qunu.
Prince Charles will be among a smaller number of dignitaries travelling to the remote rural location for that service.