The countdown is well underway to the Royal Wedding.

With just 24 hours to go, 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.

The Order of Service will be published tomorrow morning – we’ll have it for you on our blog.

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.

Royal Borough Observer:

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

How can I get to Windsor?

....You'd better get up early!

Around 100,000 people are expected to travel to Windsor to get a glimpse of the happy couple and public transport is likely to be very busy, with queueing systems in place at Windsor, Slough and Eton train stations.

Visitors are advised to pack light as they may be subject to several searches. You may have quite a walk also but there will be clearly-signed walking routes. 

The Reading Buses Greenline 702/703 and the 16/16A Maidenhead and Windsor bus will both run normally, but people will be dropped off and picked up at King Edward VII Hospital, St Leonard's Road.

Courtney Buses' number 2 bus towards Slough and Dedworth will run between Orchard Avenue off Dedworth Road and Windsor Road at McDonalds - while the number 10 Dedworth to Heathrow will only take visitors as far as Orchard Avenue off Dedworth Road and Datchet Green.

If you haven't already got a parking ticket – don't drive. Parking needed to be booked in advance and only authorised vehicles will be able to enter the closure zones on the day.

What are the road closures?

From 10pm on Friday May 18 and until late on Saturday May 19, road closures will affect the procession route and surrounding roads. During this time Windsor residents will be able to leave the road closure area, but only emergency services vehicles can enter.

Access to the car park on the Long Walk will not be affected by the road closures in place, at any time.

Road closures beyond the procession route will take effect from 6am on Saturday May 19; these include Maidenhead Road, Clarence Road, Alma Road, St Leonards Road, Frances Road, Barry Avenue, and Datchet Road.

If the town becomes too busy, it will effectively be closed by police and latecomers won’t be able to get in.

Sun cream or umbrella?

Ah, the British weather! We never know quite where we stand, do we? However, it looks like Meghan and Harry picked the right day to tie the knot – the Met Office says it's set to be warm and sunny.

Can I watch it on TV?

Yes - you can.

Live coverage of the day's events by the BBC will be presented by Kirsty Young, Huw Edwards, and Dermot O'Leary among others, while Julie Etchingham and Phillip Schofield will lead ITV's coverage.

Sky News is screening the proceedings in ultra high definition (UHD), fronted by presenter Kay Burley from a special studio on the Long Walk.

Former Gogglebox star Scarlett Moffatt will be the royal correspondent for BBC Radio 1 for the day.

You can also follow our live blog – we'll have lots of reporters and photographers in Windsor covering the wedding.

Where are the bride and groom staying the night before?

As is tradition, Meghan Markle and Prince Harry will spend the night before their wedding apart.

Ms Markle will stay at the historic Cliveden House, Bucks, with her mum Gloria Ragland - and Prince Harry will stay with best man Prince William at Coworth Park, Sunningdale.

Royal Borough Observer:

Who will be at the wedding?

Meghan Markle won't have a Maid of Honour as she reportedly struggled to choose between her friends.

Princess Charlotte and Prince George are among the flower girls and page boys.

The guest list hasn't been released but we do know that Meghan's close friends actress Priyanka Chopra and tennis champ Serena Williams are set to attend, as is fashion designer Victoria Beckham, singers Elton John and Ed Sheeran – and even comedian James Corden.

The couple haven't invited any political leaders – so Prime Minister Theresa May and US President Donal Trump aren't on the guest list.

However, 2,600 'ordinary' members of the public have received invites as a thank you for their work in their communities.

Sadly, Meghan Markle’s father won’t be attending the wedding as he is recovering from surgery. It is unknown who will walk Meghan down the aisle.

Where is the evening reception?

At Frogmore House – reportedly one of Meghan Markle's favourite places.

Members of the public can see the house for themselves in June – it's opening in aid of charity.

Who will design Meghan's dress?

Speculation has been rife, but the chosen designer has been kept closely under wraps.

Bookies favourite is Ralph & Russo – the design house which created the stunning £56,000 gown Meghan wore in the official engagement photographs, shot at Frogmore House.

Meghan is a style icon, so it's likely that her dress will have a big impact on the designs coming out this year.

Royal Borough Observer: One of two official engagement photos released Kensington Palace of Prince Harry and Meghan Markle taken by Alexi Lubomirski earlier this week at Frogmore House, Windsor.

It would be impossible to talk about Royal influence on fashion without mentioning Princess Diana. Read all about her style evolution here

Who is making the cake?

The couple are likely to shun many traditional elements of a royal wedding, opting for personal choices.

For example, their wedding cake, made by Claire Ptak, will be lemon and elderflower with buttercream and fresh flowers.

Ptak, from California but now living in London, has been an acquaintance of Meghan's since she featured on her lifestyle blog.

And arranging the flowers?

London florist Philippa Craddock has been tasked with decorating the chapel. Her team plans to use white garden roses, peonies and foxgloves, as well as locally-sourced from branches of beech, birch and hornbeam for the floral displays, which will be distributed to local charities after the wedding.

Royal Borough Observer:

When is Prince Harry and Meghan Markle's first engagement as married couple?

You won't have to wait long – they'll be at a garden party at Buckingham Palace on Tuesday (May 22).

Their honeymoon destination is being kept secret.

When is the next Royal Wedding?

There are two this year.

Princess Eugenie will be getting married in Windsor on October 12, following in the footsteps of her cousin Prince Harry.

Princess Eugenie will wed long-term love Jack Brooksbank at Windsor Chapel.

‘The Kiss’

It’s the moment we all want to see!

The bride and groom's appearance on the West Steps, surrounded by their families, will be their "balcony moment" - the most likely opportunity for a public kiss.

Royal Borough Observer: William and Kate's kiss on the balcony has been voted the favourite TV moment of 2011