17:45 - Royal couple join guests for the wedding breakfast
After the procession, the couple returned to Windsor Castle for their wedding reception hosted by the Queen.
17:15 - Throwback to Harry and Meghan leaving the Chapel
The Duke and Duchess of Sussex gather with their family and friends outside the Chapel, and are greeted by 200 guests involved with organisations closely associated with the couple #RoyalWeddingpic.twitter.com/L8MX4me9t7
The crowds cheer with delight as Harry and Meghan make their way through Windsor. Well-wishers have been waiting for hours to see the happy couple.
16:07 - Sealed with a kiss!
The Duke and Duchess of Sussex leave the church with their bridesmaids and pageboys. The couple kiss at the steps while onlookers cheer.
Harry and Meghan will now process through Windsor in a horse-drawn carriage to give the 100,000 people that have arrived in the town a chance to see them for the first time as newlyweds.
16:05 - God Save the Queen
No British royal wedding would be complete without the national anthem. The congregation stand and sing "God Save the Queen".
15:55 - Signing of the register
A cellist plays for the congregation while Harry and Meghan sign the marriage register, making their marriage official.
15:50 - Prayers and a hymn
Prayers are led by Archbishop Angaelos and The Reverend Prebendary Rose Hudson-Wilkin from the Nave. Before the choir sings Guide Me Oh Thou Great Redeemer.
15:41 - Husband and wife
After the exchanging of the rings, the Archbishop says the couple are now officially married.
"In the presence of God, and before this congregation, Harry and Meghan have given their consent and made their marriage vows to each other. They have declared their marriage by the joining of hands and by the giving and receiving of rings.
"I therefore proclaim that they are husband and wife."
15:40 - Harry and Meghan say their vows
"I Harry, take you, Meghan, to be my wife": The couple join hands as the Archbishop of Canterbury, leads the vows.
15:35 - The Choir sings "Stand by Me"
Karen Gibson and The Kingdom Choir sing a moving version ofBen E King's 1962 classic.
15:20 – The Most Rev Bishop Michael Curry gives address
The bishop spoke about the Power of Love during the service at St George's Chapel.
He said: "There's power in love. Don't underestimate it. Don't even over-sentimentalise. There is power, power in love."
He is the first African-American presiding bishop and primate of the Episcopal Church in the US and travelled from Chicago to be a the service.
15:15 – Prince Charles escorts Ms Markle down the aisle
Ms Markle, dressed in an ivory-white, off-the-shoulder Givenchy bridal gown, has met Prince Harry at the altar after being walked down the aisle by his father, Prince Charles.
15:00 – Ms Markle arrives at St George's Chapel
Ms Markle has arrived at the chapel, to loud cheers from the awaiting crowd.
14:50 – The Queen and Prince Philip arrive at Windsor Castle
Queen Elizabeth II and Prince Philip have entered St George's Chapel.
14:40 – Crowds amass at Kensington Gardens
For those who can't be in Windsor today, there's numerous screenings across the country - whether it be at home, or at a public screening like the one at Kensington Gardens.
Tyler, 23, from London, was at the screening and spoke of the "whole American appeal" Ms Markle would bring to the royal family.
"She'll bring that Meghan sparkle!"
When asked if he expected it to be different from the wedding of the Duke and Duchess of Cambridge in 2011, Tyler replied: "Well there's no Pippa to steal the limelight this time!".
Lanie, 44, lives in London but is originally from Singapore, and agreed Meghan was different from other royals.
"It's nice that Prince Charles is walking her down the aisle as her dad can't be there. We need to accept everyone."
Susan, 62, from Kent said: "Meghan will bring energy and vibrancy to the royal family. I think she will be a positive role model."
14:15 – Meghan Markle leaves Cliveden House
Ms Markle has left her hotel and is en route to Windsor Castle with her mother, Doria Ragland.
14:00 – The cast of Suits arrives
Before Meghan Markle was a royal-in-waiting, she was Rachel Zane on a hit American TV show, Suits. She quit the show when she became engaged to Prince Harry, but it seems there's no bad blood.
Her former castmates, including Gabriel Macht, Gina Torres, and Ms Markle's former on-screen husband, Patrick J Adams, have arrived with the rest of the Suits cohort, after being busy sharing pictures on social media in the lead-up to the wedding.
13:35 – Celebrity guests descend on Windsor
Amal and George Clooney, the Beckhams, and the Middletons, and plenty more well-known faces have arrived ahead of the ceremony.
13:15 – Prince Harry leaves his hotel
The groom has left his hotel room at Coworth Park and is en route to Windsor Castle.
13:05 – Guests start to arrive
Oprah Winfrey, the actor Idris Elba and musician James Blunt are among the celebrity guests who have started to arrive at Windsor Castle.
A reminder that the Royal wedding is not the only thing happening today: overnight the political bloc led by the populist cleric Moqtada Al Sadr was confirmed as the winner in Iraq’s parliamentary election; a new bridge is to be constructed in Dubai as part of the Dh5 billion Shindagha Corridor project; and further relief will be coming from football’s FA Cup final later today when Manchester United meet Chelsea at Wembley.
12pm - Crowds swell outside Windsor Castle
Less than three hours before the festivities begin, crowds are gathering en masse outside the front gates of Windsor Castle.
Loud, sporadic cheers can be heard from the joyful crowd, as people wave flags and settle in for an afternoon of pageantry.
11:35 - Prince Harry to become the Duke of Sussex
Queen Elizabeth II has conferred a dukedom on Prince Harry, making him the Duke of Sussex, Earl of Dumbarton and Baron Kilkeel.
The new title will mean that when Prince Harry marries Meghan Markle later today she will become the Duchess of Sussex.
The monarch similarly bestowed titles on the Duke and Duchess of Cambridge before their wedding in 2011.
11:25 - Business world turns red, white and blue
Everyone’s getting in on the act, in this instance Google:
Who can forget (what, you did?) British Airlines only assigning crew members named Harry and Meghan (and Megan without an h) on their flight from London to Toronto today.
10:45 - Prepare for a day of pageantry
Queen Elizabeth II is of course famed – among many other things – for her love of horses, an interest she shares with Sheikh Mohammed bin Rashid, Vice President and Ruler of Dubai. Her grandson and his wife will process by horse-drawn carriage from St George’s Chapel and the last minute touches were being put in place yesterday.
Staff at The Royal Mews apply their final touches, ahead of tomorrow’s #RoyalWedding.
Crowds of well wishers are assembling already in Windsor, many draped in British and American flags. Some slept out overnight, huddled on benches – prime vantage points claimed early by the most obsessive supporters of the monarchy.
04:00 - Wedding fever dominates Britain's front pages
The front pages of Saturday's newspapers in the UK are dominated by the image of Meghan Markle arriving with her mother, Doria Ragland, at the Cliveden House Hotel the night before she marries Prince Harry.
"Welcome to the family," The Times proclaimed.
"Happy as Harry," said The Mirror, while The Sun led with the line: "I'm getting Harryed in the morning." The Daily Mail, meanwhile, chose to focus on Ms Markle's role in modernising the British monarchy, declaring it: "A magically modern royal wedding."
22:00 - Prince Harry meets crowds in eve-of-wedding walkabout
Prince Harry visited delighted crowds of well-wishers outside Windsor Castle on Friday on the eve of his wedding to Meghan Markle, accompanied by his brother Prince William.
The brothers, wearing jackets and open necked shirts, walked along a line of flag-waving spectators, shaking hands and chatting -- causing huge excitement among the crowd.
20:00 - Meghan Markle 'to take the royal family into the future'
"Meghan will bring a new perspective to the royal family," royal biographer Claudia Joseph told Reuters. "Obviously she comes from a very different background and ... that’s hugely important to take the royal family into the future."
19:45 - Here comes the bride... but not that bride
Vicky Compson got married to Aron Hallam at Windsor's Guildhall on Friday May 18. The couple, who booked the wedding before Harry and Meghan did, were cheered on by well-wishers who had arrived in the town ahead of Saturday's royal nuptials.
This is the (sped-up) route the couple will take through the town of Windsor after the ceremony.
As preparations for the Wedding of Prince Harry and Ms. Meghan Markle continue in Windsor, join us for a look at the route the newlyweds will take in a Carriage Procession following the Wedding Ceremony.#RoyalWeddingpic.twitter.com/YnFQVhxxti
Harry had never heard of Meghan or watched Suits before the pair were set up by a mutual friend in July 2016.
Meghan played lawyer Rachel Zane in the US drama for seven years before announcing her retirement from acting last year.
Her Suits co-stars have already started arriving in London ahead of the wedding on Saturday. Gabriel Macht, who plays lawyer Harvey Specter in the drama, uploaded a picture of himself and his wife Jacinda in Hyde Park on Thursday.
Prince Philip, who is 96 and recently had a hip operation, will attend the service, Buckingham Palace said on Friday, joining his wife Queen Elizabeth II.
Meanwhile, the announcement that Prince Charles will walk down the aisle with Meghan Markle will go some way to drawing a line under the turmoil that has surrounded her family in the later stages of the preperations, notably her father Thomas’s once likely – and now certain – absence on the day.
While the best man is Prince William – Harry’s brother – the other guests in closest attendance to the bride to be will all be children after she decided she did not want to have to choose between her adult friends.
17:00 - Have your say
16:30 - A menu fit for a royal wedding
If you are hosting a wedding-watching party we have put together a tempting menu of American and British-inspired recipes which will help to keep your guests happy during the proceedings.
A Royal wedding and the FA Cup Final at Wembley on the same day are expected to drive up sales for UK retailers. Good weather with plenty of sunshine - as expected on the day - will also help.
15:00 - How to join in on Saturday
For those of you in the UK who are venturing out to join the throng in Windsor, here’s where to eat/sleep/shop during what is expected to be a 100,000-strong street party.
If you are in the UAE and want to watch the wedding in good company there are parties aplenty in Abu Dhabi and Dubai. Here are some options – 14, in fact – to make your day extra special.
14:00 - The bride is a symbol of change for the British monarchy
As recently as 60 years ago, a divorcee such as Ms Markle was blocked from marrying into British royalty. We look at the history of Royal weddings in decades gone by.
13:50 - Meet the royal superfan
Thousands of well-wishers will be lining the streets of Windsor to catch a glimpse of the couple. Donna Werner has travelled thousands of miles from Connecticut in the United States:
13:45 - Royal wedding cake
The royal wedding cake designer and her team were busy in Buckingham Palace's kitchens on Thursday putting the finishing touches on a "quintessentially Spring and British" wedding confectionary fit for a prince and princess.
Claire Ptak, who runs a bakery in London, was chosen by the couple in March to design the cake which will have "a lemon sponge, a lemon curd filling and an elderflower Swiss spring buttercream" icing. Watch below:
13:30 (11:30 BST)
Hello and welcome to The National's rolling coverage of the build up to the Royal Wedding.
Prince Harry, 33, and the American actress Meghan Markle, 36, are to marry at St George's Chapel, Windsor, on Saturday.
Final preparations are well under way and the streets of Windsor, which is 25 miles west of central London, are already bustling in anticipation. An estimated 100,000 well-wishers are expected to line the streets on Saturday while 600 guests attend the service in the chapel, with thousands more invited to the castle grounds.