The crowds have camped out overnight, the celebrities are taking their seats in Westminster Abbey, and perhaps you’ve even got your coronation quiche ready.
As the procession gets underway and we await the ceremony, here are five regal moments to look out for throughout the day.
Happening off screen
The most sacred moment of the Coronation will take place off-camera, as the King will be anointed with holy oil in a solemn private moment.
The Dean of Westminster, David Hoyle, will pour holy oil from the Ampulla into the Coronation Spoon, and the Archbishop of Westminster, Justin Welby, will anoint the Sovereign on his hands, chest, and head.
The oil was consecrated in a special ceremony at The Church of the Holy Sepulchre in Jerusalem in March, and is made from olives harvested from groves on the Mount of Olives.
Unlike previous formulas which included civet oil, from the glands of small mammals, the oil used is ethically sourced with no animals harmed in its making.
Many across the country are looking forward to hearing Lord Andrew Lloyd Webber’s coronation anthem ‘Make a Joyful Noise’ which be performed for the first time as the Queen is enthroned.
The anthem is based on verses from Psalm 98, “Oh sing to the Lord a new song, for he has done marvellous things!”
The title comes from the line “Make a joyful noise to the Lord, all the earth; break forth into joyous song and sing praise!”
Following the Coronation, the anthem will be released as a single to raise money for the Royal British Legion and Age UK.
Pledge of Allegiance
Following the enthroning of the King, the Archbishop of Canterbury will invite the people “to make their homage, in heart and voice, to their undoubted King, defender of all.”
This will follow the Homage of The Church of England and the Homage of Royal Blood, where the Archbishop of Canterbury and HRH The Prince of Wales will in turn pledge their loyalty to the King.
In a break from tradition, hereditary peers will not be asked to touch the crown and kiss the monarch.
The pledge of allegiance has however not passed without discussion, with Lambeth Palace confirming it is an ‘invitation’, not an obligation, following backlash on social media.
Scones and Cakes
The Stone of Destiny, also known as the Stone of Scone, will be placed underneath the Coronation Chair which King Charles will sit on as he is crowned.
The 336-pound sandstone slab is named after the Scottish village of Scone, where Celtic Scots allegedly encased it in a coronation chair for Scottish kings.
The Stone of Scone has also been recreated in cake form, making up the bottom tier of the McVitie’s fruity cake which will be served at the reception at Windsor Castle.
Using 300 free-range eggs and 300kg of batter, the cake will also feature edible forms of the Sovereign’s Orb and use patterns of the Anointing Spoon.
Straight over your head
One of the final moments of the festivities will be the flypast at 2.15pm, featuring more than 60 planes from the Royal Navy, British Army and Royal Air Force.
It is however still unclear whether the flypast will go ahead, with gloomy skies and forecast rain jeopardising plans.
A final decision will be made a few hours before, with alternative options such as a reduction of the number of aircrafts also a possibility, and cancellation only as a last resort.
You can follow along all of today’s events on SWLondoner’s live blog here