The Queen turned 94 on April 21. Although her actual birthday is in April, she also has an official birthday that is celebrated every year on a Saturday in June.

Sovereigns whose real birthdays fall in colder months have often celebrated an official birthday on a different date in the hope of good weather for their birthday parade, known as the Trooping the Colour.

Because British weather can be cold on April 21, the Queen's official birthday celebration usually falls on the second Saturday of June.

This year, however, due to social-distancing measures, the Queen will watch a smaller private military ceremony at Windsor Castle without any other family members.

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Being the Queen comes with special privileges, like owning 200 of the same handbag, and having not one but two birthdays.

The Queen turned 94 on her actual birthday on April 21, but she also has an official birthday that is celebrated every year on a Saturday in June.

The reason for the second birthday has to do with the weather. Sovereigns whose real birthdays fall in colder months have often celebrated an official birthday on a different date in the hope of good weather for their birthday parade, known as the Trooping the Colour, according to the royal family's official website.

Because British weather can be cold on April 21, the Queen's official birthday usually falls on the second Saturday of June

For her actual birthday, the Queen typically celebrates in private, according to the royal family's website. But there are usually public celebrations as well, which include gun salutes at midday in London's Hyde Park, Windsor Great Park, and the Tower of London.

For the Trooping the Colour in June, the Queen's birthday becomes a public spectacle. She traditionally parades the streets of London — through Buckingham Palace, The Mall, and the Horse Guards Parade — and makes an appearance on the balcony of Buckingham Palace with other royal family members.

The Queen on the balcony of Buckingham Palace, along with members of the Royal Family on her official birthday on June 11, 2011. British weather is the reason why Her Majesty celebrates two birthdays each year. Getty Images

This year, the Queen's official birthday celebration will look very different

As Insider's Mikhaila Friel wrote in her report, social-distancing measures in the UK and the Queen self-isolating at Windsor Castle mean this year's Trooping the Colour is not possible. So, instead of a big parade, this Saturday's celebration will be a small, private affair held on the grounds of Windsor Castle without other members of the royal family or the public.

"The Queen will view a military ceremony in the Quadrangle of Windsor Castle to mark Her Majesty's Official Birthday on Saturday 13th June, 2020," a Buckingham Palace spokesperson said in a statement on Wednesday.

"The ceremony will be executed by soldiers from the 1st Battalion Welsh Guards, who are currently on Guard at Windsor Castle, and feature music performed by a Band of the Household Division."

"Upon Her Majesty's arrival in the Quadrangle, The Queen will be greeted by a Royal Salute," the statement added.

"A series of military drills will then be carried out as the Band plays, and the ceremony will conclude with a second Salute before The Queen's departure."

As Friel writes, citing Hello! Magazine, "the Queen has only ever missed the official Trooping the Colour ceremony on one other occasion, when the event was canceled due to rail strikes in 1955."

The Trooping the Colour has a long history dating back to the 17th century

The elaborate parade dates back to 1660 during the Restoration of King Charles II and became an occasion for honoring both the monarch and the military in 1748, according to a blog post by the historian, author, and royal commentator Dr. Carolyn Harris.

The Trooping the Colour has been held on the sovereign's birthday since the traditions were combined by King Edward VII in 1901, Harris explained in her blog post. The King, whose birth date was in November, marked his official birthday in May or June, according to the royal family website.

When she turned 90, Her Majesty walked around Windsor, unveiled a plaque on the Queen's Walkway, and lit a beacon followed by over 900 set alight across the UK and the world.