The ceremony will be taking place on a Saturday, during the weekend, whereas more recent coronations have fallen on weekdays.
The last coronation to take place on a weekend was that of King Edward VII and Queen Alexandra, which took place on Saturday 9 August 1902, over a century ago.
The coronation was, however, originally due to take place on Thursday 26 June 1902, but it had to be postponed after the King developed an abdominal abscess that required surgery.
Before that, the last weekend coronation was that of Queen Elizabeth I, which took place on Sunday 15 January all the way back in 1559.
Charles’ coronation also falls on another special day, as his grandson, Archie, will be celebrating his fourth birthday.
Marlene Koenig, royal historian, told said: “Archie is too young to attend the coronation. But Charles was four and a half. However, Archie is not heir to the throne or even remotely close to the throne.”
The coronation ceremony will take place at Westminster Abbey, and will be conducted by the Archbishop of Canterbury.
Buckingham Palace confirmed that the coronation “will reflect the monarch’s role today and look towards the future, while being rooted in longstanding traditions and pageantry.”
The coronation of the new sovereign traditionally takes place some months after accession to the throne, following a period of national and royal mourning as well as allowing time for the preparation required to organize the ceremony.