Prince Harry and Meghan Markle are set to marry at midday.

Prince Harry and Meghan Markle

Prince Harry and Meghan Markle

The 33-year-old royal and the former 'Suits' actress will tie the knot at St George's Chapel inside Windsor Castle on May 19, and further details of the upcoming nuptials have now been revealed, including the exact time their wedding will begin.

In a series of tweets posted to Kensington Palace's Twitter account, it was revealed the happy couple will begin their wedding service at 12pm at Windsor Castle, before undergoing a Carriage Precession through Windsor as a newly married couple an hour later.

The tweets read: "Prince Harry and Ms. Meghan Markle are hugely grateful for the many good wishes they have received since announcing their engagement.

"They are looking forward to the day and to being able to share their celebrations with the public and wanted to share the following details about their wedding on May 19th with you:
"The wedding service will begin at 12noon at St George's Chapel. The Dean of Windsor will conduct the service and The Archbishop of Canterbury will officiate as the couple make their vows.

"At 1pm the couple, now married, will undertake a Carriage Procession from St George's Chapel through Windsor Town returning to Windsor Castle along the Long Walk.

"They hope this short journey will provide an opportunity for more people to come together around Windsor and to enjoy the atmosphere of this special day. (sic)"

And in two further tweets, it was revealed the couple will then travel to St George's Hall for a reception, before Harry's father Prince Charles hosts a "private evening reception" for special guests.

The tweets read: "Following the service, there will be a reception at St George's Hall for the couple and the guests from the congregation.

"Later that evening, The Prince of Wales will give a private evening reception for the couple and their close friends and family."