Unsurprisingly, the television coverage of the day is long and it is spread across the BBC, ITV and Sky News.
The live programmes begin at 9am on BBC One and Sky News and that is not ridiculously early because it is from 9am that members of the public that are invited will begin to arrive at St. George’s Chapel at Windsor Castle.
However, it is a few hours before the happy couple actually exchange rings.
The excitement will really start to build from around 11.20am as that is when the royal guests will start to arrive.
Meghan will be making her way to the chapel from 11.30am and the
ceremony is due to take place at midday.
The service is due to take an hour and then there is an open carriage ride through Windsor at 1pm.
Full schedule for Saturday
The first arrivals – 9am
Members of public invited to the wedding will begin arriving at St George’s Chapel from 9am.
The wedding guests arrive – 9.30am
Meghan and Harry’s 800 wedding guests are set to arrive between 9.30am and 11am.
They will arrive at the Round Tower by coach or on foot, entering the South Door of St George’s Chapel to take their seats for the ceremony.
This is when we will get to see the likes of David and Victoria Beckham, Elton John and David Furnish, Ellie Goulding, Serena Williams and co, who are all rumoured to be invited to the couple’s big day.
The royal guests arrive – 11.20am
Members of The Royal Family will begin to arrive from 11.20am.
They will enter St George’s Chapel via the Galilee Porch. Some will be on foot, and others will arrive by car.
Prince Harry and his best man, Prince William, will also arrive at St George’s Chapel around this time, most likely by foot. They will enter the chapel via the West Steps.
By entering via the West Steps, Harry and William will be able to greet those gathered in the Castle precincts, including the 200 charity representatives gathered in the Horseshoe Cloister at the bottom of the steps.
Meghan makes her way to the Chapel – 11.30am
Around 11.30am, Meghan will leave Cliveden House Hotel with her mother, Doria Ragland, and the pair will embark on a carriage ride to Windsor Castle.
They are expected to go along part of the Long Walk, allowing members of the public gathered there to see the car as it passes.
When the arrive at the Castle, Doria will exit the carriage to head to the Chapel and Meghan will be joined by some of her Bridesmaids and Page Boys. She is also expected to be greeted by her father, Thomas Markle, although it was reported yesterday that health problems and fear of embarrassing Meghan may stop him attending the wedding.
Meghan’s journey to the church will then continue and she will enter via the West Steps too.
The ceremony – 12pm
Harry and Meghan’s service at St George’s chapel is due to kick off at midday, providing the bride isn’t running fashionably late, of course.
The marriage of Prince Harry and Ms. Meghan Markle will take place at St. George's Chapel, Windsor Castle in May 2018. pic.twitter.com/lJdtWnbdpB
— Kensington Palace (@KensingtonRoyal) November 28, 2017
They will say ‘I do’ in the historic surrounds of the Castle’s 15th century chapel.
It has been confirmed that the Archbishop of Canterbury Justin Welby will marry the couple as they take their vowels.
The Rt Rev David Conner, Dean of Windsor, will conduct the service, which is taking place in front of 800 wedding guests.
The service is expected to last around one hour and further details of the order of service will be announced on the morning of the wedding.
The carriage procession – 1pm
After the hour-long service, the couple will take an open carriage ride through Windsor.
As they make their way from the service to their waiting carriage, they will get to meet a number of charity representatives at the bottom of the steps.
Kensington Palace said: ‘The couple are delighted that these people who will be such an important part of their official work in the years to come will be the first people they see after their wedding.’
Just before they head off on their ride around Windsor, close family members will gather on the West Steps to wave them off on their procession.
Members of the congregation will also file out of the church onto the grass to wave Harry and Meghan off on their Procession.
The newlyweds will embark on a carriage procession along a route including Castle Hill, High Street, Sheet Street, Kings Road, Albert Road, Long Walk and finally Windsor Castle.