The Coronation will be a “moment of extraordinary national pride”, Rishi Sunak has said.
In a message on the eve of the historic ceremony, the Prime Minister said it is not simply a “spectacle” but a “proud expression” of British history.
Mr Sunak, who will be among the party leaders and dignitaries in Westminster Abbey on Saturday, added that it was an opportunity for “hope and optimism” about the future.
He said: “The Coronation of King Charles III and Queen Camilla will be a moment of extraordinary national pride.
“Together with friends from across the Commonwealth and beyond, we will celebrate the enduring nature of our great monarchy, its constancy, devotion to duty and service to others.
“No other country could put on such a dazzling display – the processions, the pageantry, the ceremonies and street parties.
“But this is not just a spectacle. It’s a proud expression of our history, culture, and traditions.
“A vivid demonstration of the modern character of our country and a cherished ritual through which a new era is born.
“And a cherished ritual through which a new era is born.
“In the Abbey where monarchs have been crowned for almost a thousand years, representatives of every faith will play a central role for the first time.”
Mr Sunak said that the fact “people across our country will help their communities with thousands of acts of kindness” was a “fitting tribute to the spirit of service that will define the Carolean age”.
He added: “So let’s celebrate this weekend with pride in who we are and what we stand for. Let’s look to the future with hope and optimism.
“And let’s make new memories, so we can tell our grandchildren of the day we came together to sing: God Save The King.”
A 2,300-strong congregation, and a television audience likely to be in the tens of millions, will watch Charles being crowned alongside Camilla on Saturday.
Some 100 heads of state will descend on London for the King and Queen Consort’s historic Coronation, with international representatives from 203 countries due to attend.
French President Emmanuel Macron and Germany’s ceremonial president Frank-Walter Steinmeier will be among those in Westminster Abbey.
Chinese vice-president Han Zheng, who presided over a civil liberties crackdown in Hong Kong, is also on the King’s guest list, but the move has been branded “outrageous” by Conservative MPs.