Final preparations are being made for street parties, with extended pub licensing hours allowing drinkers to enjoy an extra tipple or two.

While 2,640 lucky invitees will enjoy the ceremony from within the grounds of Windsor Castle, millions of Britons will be watching the wedding from their homes or will be joining in the celebrations at street parties and events. 

With the Royal Wedding just hours away, here's everything you need to know about the biggest event of the year.

Where is the wedding?

The wedding takes place at St George's Chapel, Windsor.

Preparations are well underway in the town, with flags and barriers installed this week. Well-wishers have already set up camp along the route.

What time is the wedding?

The ceremony begins at noon, with guests arriving from 11am.

The Dean of Windsor, The Rt. Revd. David Conner, will lead the ceremony.

The Most Revd. and Rt. Hon. Justin Welby, Archbishop of Canterbury, are the set officiants of the royal wedding.

The Most Reverend Michael Bruce Curry, the 27th Presiding Bishop and Primate of The Episcopal Church, is to give the address.

What about the procession?

Prince Harry and Meghan Markle will undertake a carriage ride through Windsor straight after the St George’s Chapel ceremony and before their reception.

The journey is designed to allow members of the public to see the newlyweds in person while they are still dressed in their finery and thousands of people are expected to line the route.

At 1pm, immediately after the service, the couple will be driven along Castle Hill, the High Street and into Windsor town centre before returning along the Long Walk for their reception. The whole procession is expected to take 25 minutes.

Huge screens will be in place so that visitors to Windsor can watch the marriage ceremony as it happens inside the chapel

If you would like to join in the celebrations click here to see a full list of events which are happening across the county today.