Hello and welcome to our live text coverage of the fourth day of the Queen's Diamond Jubilee celebrations. We will have regular updates from BBC correspondents on the ground. The Queen will not be joined by her consort as Prince Philip remains in hospital with a bladder infection.
To give you an idea of timings, the main events today are the 50-minute thanksgiving service at St Paul's Cathedral at 1030 BST, followed by formal lunches for the royal family and a carriage procession at 1420, and a Buckingham Palace flypast - weather permitting - at 1525.
Leading national figures, including the prime minister, and members of the Royal Family including the Prince of Wales, the Duchess of Cornwall, the Duke and Duchess of Cambridge and Prince Harry - though not of course the Duke of Edinburgh - will attend the St Paul's service.
For a flavour of how performers at last night's Jubilee concert at Buckingham Palace shared in the celebratory atmosphere, you can read BBC entertainment reporter Mark Savage's review of the night.
Hundreds of well-wishers have already gathered outside St Paul's, with one woman saying she woke up at 03.30 BST to travel to the event from her home in Essex. She said: "My children wanted to watch it on television, but I told them the atmosphere would be so different if we were there."
The BBC's Dominic Hurst reports from outside St Paul's that City of London police on ceremonial duty have been given medals to mark the Diamond Jubilee. Many are also wearing Golden Jubilee medals from 10 years ago. "It's nice to be wearing white gloves and our ceremonial tunics instead of body armour," said one officer.
The Queen's former press secretary, Charles Anson, tells the BBC the Duke of Edinburgh's absence will be felt today, "but I think 'keep calm and carry on' is a phrase that might have been invented for our Queen. We've seen it in 60 years and I'm sure it will be the same today."
The Queen will also give a message of thanks for this weekend's celebrations in a special address, recorded on Monday, to be broadcast at 1800 BST in the UK and across the Commonwealth, Buckingham Palace has announced.