Millions of people around the world are holding parties to mark the Queen's Diamond Jubilee.
As well as being head of state for the United Kingdom and for 15 Commonwealth realms, Queen Elizabeth II heads the Commonwealth itself.
You have been sharing your stories of celebrations across the globe from the US to the South Pacific.
Antony Jinman, on Mount Barbeau, Canadian Arctic
For this year's Jubilee I have conquered the summit of Mount Barbeau in the Canadian Artic with my expedition group.
The group consisted of Oli Milroy - a staff member of Education Through Expeditions, which is based in England.
Two Plymouth University students, a local businessman, a Canadian mountaineer and a member of the Candian Inuit tribe.
I led the expedition and I am so proud we have successfully climbed the highest point of the Queen Elizabeth Islands.
At 19, Oli Milroy is the youngest person in history to climb this peak.
We are now readying our loyal greeting for the festivities back home and preparing for the world's most remote Diamond Jubilee tea party.
Angela Fukutome, Takamatsu, Japan
We are feeling the excitement even over here in Japan.
I wish I could be home in the UK to join in the celebrations.
However, as I can not be in England I am marking the occasion here by hosting a traditional British afternoon tea party.
We have put so much food out the table almost gave way!
Dominic Joseph Radanovich, Milwaukee, Wisconsin, US
The Royal Standard is flying on the front porch of my home on West Wells Street, in Milwaukee especially for the Jubilee.
I am flying the flag for the five days of the Jubilee celebrations. I will do the same next year to mark the sixtieth anniversary of the Coronation itself.
Elizabeth II is the Queen of my heart. I am 73-years-old, so I have been able to follow Her Majesty for all of these years.
When in Canada for Expo 1967, I was in Ottawa on 1 July 1967 for the Royal celebrations on Parliament Hill.
My wife and I met up with Prince Phillip and the Queen at that event. I have never forgotten that time. We were awe struck!
Hilary Cohen, Wagga Wagga, Australia
We had an afternoon tea, with over 100 guests, to celebrate the Queen's Diamond Jubilee at the art and craft hall in Wagga Wagga.
George Bruce, president of the local branch of Australia for Constitutional Monarchy, gave a talk about the highlights of Her Majesty's life.
The event was made all the more exciting with a letter from Buckingham Palace thanking everyone for their loyalty and support.
A number of members brought their memorabilia. The afternoon began with the singing of the Australian national anthem and the royal anthem and was enriched with a hat parade coordinated by Rose Organ.
We see the Queen as a symbol of democracy that has held the Commonwealth together. She is constitutionally Queen of Australia as much as Queen of the United Kingdom and for that we owe her our allegiance.
Steve Cartwright, Coustouges, Pyrenees-Orientales, France
We had a lunch party arranged by the local chasseurs, or huntsmen. When I suggested we make it a celebration of the Queen's Diamond Jubilee there was not a word of dissent.
They thought it an honour to be part of something so magnificently British.
The Queen has been an inspiration to several generations. Here in France there has just been a presidential election. In my village, it was almost meaningless. One head of party replaces another as head of state.
There is no longer a Royal Family in France, and life for those living here is quite mundane in that respect.
After our meal, I explained that I would like to propose a loyal toast to her Majesty the Queen. For those who were not British subjects, I suggested that this should be a royal toast.
It was a superb and enjoyable event. The whole of this French village is now buzzing with the excitement of the Queen's Diamond Jubilee.
Susana Taafaki, Tuvalu
We had a big Jubilee lunch at the Nauti Primary School, run and organised by the Tuvalu Scout Association.
We shared a feast of local food including breadfruit, pandanus fruit, coconuts, rice and fish.
A speech was given, followed by singing and dancing lead by the local community leaders and the pastor.
Tuvalu is the world's fourth smallest country with a total landmass of just over 10km squared distributed amongst nine different atolls and islands - it is also one of the most remote and least visited.
Tuvalu recently came under the spotlight after it was announced that it is due to be visited by HRH Price William and Kate Middleton in October who will follow in the footsteps of HRH Queen Elizabeth II who visited the islands with Prince Phillip in 1982.
HRH Princess Margaret who also visited the islands to open the country's only hospital which still bears her name.
Alla Koptseva, Estonia
We are having a little family party, just the three of us; me, my husband Alo Rauk and our son Oliver, aged four-and-a-half.
We have a table cake decorated with a flag of England on it and the number 60 as well as apple pie and English tea.
Queen Elizabeth II visited Estonia-Tallinn in October 2006. It was a great thing for Estonia. The people saw with their own eyes the real Queen that we usually watch on TV.
We love London very much. It's such a nice and beautiful city. We love watching TV programmes about the Royal Family and England and we loved last year's royal wedding, even our little boy loved the wedding.
When I think England, I think the Queen. I think of England being modern mixed with tradition.
Ian Forsyth, Christchurch, New Zealand
I'm originally from Scotland and have lived in New Zealand for 18 years. My wife is from South Africa.
We have a twin son and daughter, one of whom is currently in Canada.
We have guests for breakfast and then I plan to go camping in Porters Pass which is one-and-a-half hour's drive from where I live in Christchurch.
I have a place on a snow melt stream - high in the mountains. I'll be fishing for trout and have a bottle of Speyside single malt chilling for the evening camp fire.
The Queen to me signifies continuity. Cheers your Majesty! Long may you reign.
See all the latest Diamond Jubilee news and features at bbc.co.uk/diamondjubilee