Birthdays are usually occasions for rejoicing and feasting. Relatives and friends gather on the occasion and wish many happy returns of the day and offer their blessings. They bring with them beautiful presents. But what happens when you have two birthdays?

Every summer the Mall outside Buckingham Palace, United Kingdom is filled with flag-waving, Union Jack-clad merrymakers. There's a series of gun salutes around London and people from all works of life gather to catch a glimpse of the Royal family as they stand on the balcony for the Queen’s birthday in an opulent birthday celebration known as Trooping the Color.

This year, the royal fans will be hoping to catch a glimpse of the engaged royals Prince Harry and Meghan Markle, as well as Princess Charlotte and little Prince George.

So, as the monarch turns 92, it’s a relevant question to ask.

Why does the queen celebrate two birthdays?

Queen Elizabeth II is Britain’s Longest Reigning Monarch—and she turns 92 today. She was the first child of The Duke and Duchess of York, who later became George VI and Queen Elizabeth. Although she celebrated her birthday today with the royal family, she’ll also have another birthday in June.

It’s a tradition that started 270 years ago in 1748, during the reign of King George II. The King was born in November, and he felt it would be too cold for a birthday celebration. In his bid to celebrate his birthday with the public, he sought for a good time of the year that would encourage people to attend his birthday parade which happens during the day.

King George II decided to declare a second birthday for himself in summer, so he could celebrate with the public. The June celebration was designed to help familiarize soldiers with the colors of regiment flags - but it now became the perfect time of the year to also celebrate the monarch’s birthday.

The date of the celebration today varies as adopted by each country and is generally set around the end of May or start of June, to coincide with a higher probability of fine weather.

June became known as the Queen’s “official” birthday.

Apparently, her majesty has a private birthday with the royal family and then celebrates in June as well, in the summer, when the weather is warm and nice. So no, the Queen is not a mutant who ages twice as fast as everyone else. She just celebrates her ancestry twice because her ancestor wanted a nice parade.

How the queen marked her birthday?

Her Majesty spent the day with the royal family and then attended a special concert at the Royal Albert Hall, as the world’s oldest and longest-reigning monarch.