Happy 95th Birthday to Prince Philip and a very Joyful Weekend Celebrations of Queen Elizabeth's Official 90th Birthday
This new photo was released to commemorate Prince Philip's 95th Birthday that is today 10th June 2016
And also this weekend there will be many celebrations for the Official Birthday of Queen Elizabeth's 90th Birthday
Readers at the service will include David Cameron and Sir David Attenborough, who is the same age as the Queen.
It will be followed by a lunch for the Governors General of all Commonwealth Realms at Buckingham Palace.
At midday there will be a gun salute at Hyde Park by the King's Troop Royal Horse Artillery in honour of Prince Philip's birthday followed by a 1pm salute at the Tower of London by the City of London's Reserve Army Regiment.
On Saturday, events will include the annual Trooping the Colour ceremony on Horse Guards Parade, followed by an RAF flypast of 29 aircraft and a flotilla of 50 vessels processing down the Thames.
The celebrations will culminate on Sunday with a party on The Mall for 10,000 people from over 600 organisations of which the Queen is Patron.
Since then, the date of the king or queen's birthday has been determined throughout the British Empire and later the Commonwealth according to either different royal proclamations issued by the sovereign or governor or by statute laws passed by the local parliament.
The date of the celebration today varies as adopted by each country and is generally set around the end of May to start of June, to coincide with a high probability of fine weather in the Northern Hemisphere for outdoor ceremonies, rather than with the monarch's actual birthday, that of the present monarch being 21 April.
In some cases, it is an official public holiday, sometimes aligning with the celebration of other events. Most Commonwealth realms release a Queen's Birthday Honors list at this time.