The Prince of Wales will lead the nation in honouring the country's war dead during the national service of remembrance.
The Queen will view the service from the balcony of the Foreign and Commonwealth Office building as she did last year.
After Charles has laid a wreath, other floral tributes will be left by members of the royal family, and senior figures from the Government.
The Duke and Duchess of Cambridge will be in attendance alongside the Duke and Duchess of Sussex, in their first public appearance together since the recent documentary about Harry and Meghan's tour of southern Africa.
They will also appear at the annual Royal British Legion Festival of Remembrance at the Royal Albert Hall.
The service begins at 11am, although the Cenotaph will be open to the public from 8am for those hoping to be closer to the monument.
The Royal British Legion detachments form on Horse Guards Parade in Whitehall from 9am, before the two minute silence at 11am.
Around 10,000 people will take part in the March Past the Cenotaph, among them men and women who have served in military operations, as well as bereaved spouses.
BBC One will be showing live coverage of the parade and service from 10.20am on Sunday morning.
During the day, church and other bells will ring out to mark the end of the First World War and services will be held in Westminster Abbey and St Paul's Cathedral.
The Abbey is offering visitors the chance to visit the Field of Remembrance, a field of scarlet poppies on crosses across the Abbey’s grounds recognising those lost in wartime conflict. The field is open from 8am-6pm until November 17.
Services will also be held at the Royal Air Force Museum and The Imperial War Museum on Sunday.