The Coronation of His Majesty The King is a time for celebration across the nation and the Commonwealth, over a weekend of special events:
The coronation ceremony is an occasion for pageantry and celebration, but it is also a solemn religious ceremony and has remained essentially the same over a thousand years. For the last 900 years, the ceremony has taken place at Westminster Abbey, London. The service is conducted by the Archbishop of Canterbury, whose task this has almost always been since the Norman Conquest in 1066.
Source: About the Coronation – Coronation of His Majesty The King & Her Majesty The Queen Consort