The Queen is set to make history when she becomes the first British monarch to reach their Sapphire Jubilee.

Elizabeth II will have reigned for 65 years on February 6 – the day of her coronation.

Unlike her Golden Jubilee in 2002, there are no grand festivities planned to mark the historic milestone.

The Queen is, at this stage, not due to be out and about on official engagements on the landmark day.

The monarch missed church over Christmas due to a heavy cold but is now will undoubtedly be matter of fact about this historic occasion.

The Queen is set to make history when she becomes the first British monarch to reach their Sapphire Jubilee.

Elizabeth II will have reigned for 65 years on February 6 – the day of her coronation.

Unlike her Golden Jubilee in 2002, there are no grand festivities planned to mark the historic milestone.

The Queen is, at this stage, not due to be out and about on official engagements on the landmark day.

Queen Elizabeth II's 90th Birthday Celebrations at Home Park, Windsor 17 show all Queen Elizabeth II's 90th Birthday Celebrations at Home Park, Windsor 1/17 Scenes from the marriage of Britain's Queen Elizabeth II and her husband Prince Philip, Duke of Edinburgh are shown during the final night of The Queen's 90th Birthday Celebrations at the Royal Windsor Horseshow Leon Neal/AFP/Getty Images 2/17 Camilla, Duchess of Cornwall, Prince Philip, Duke of Edinburgh and Catherine, Duchess of Cambridge along with Queen Elizabeth II during the final night of the Queen's 90th Birthday Celebrations at Windsor Chris Jackson/Getty Images 3/17 Anthony McPartlin and Declan Donnelly present the televised celebration of the Queen's 90th birthday in the grounds of Windsor Castle in Berkshire Andrew Matthews/PA 4/17 Australian singer Kylie Minogue performs for The Queen during the final night of The Queen's 90th Birthday Celebrations at the Royal Windsor Horseshow Leon Neal/AFP/Getty Images 5/17 Gary Barlow performs during the televised celebration of the Queen's 90th birthday in the grounds of Windsor Castle in Berkshire Andrew Matthews/PA 6/17 The Royal Cavalry of Oman perform for The Queen during the final night of The Queen's 90th Birthday Celebrations at the Royal Windsor Horseshow Leon Neal/AFP/Getty Images 7/17 A pantomime horse and corgi perform for The Queen during the final night of The Queen's 90th Birthday Celebrations at the Royal Windsor Horseshow Leon Neal/AFP/Getty Images 8/17 James Blunt performs during Queen Elizabeth II's 90th Birthday Celebrations at Home Park, Windsor Ben A. Pruchnie/Getty Images 9/17 Italian singer Andrea Bocelli performs for The Queen during the final night of The Queen's 90th Birthday Celebrations at the Royal Windsor Horseshow Leon Neal/AFP/Getty Images 10/17 Dame Shirley Bassey and Declan Donnelly on the final night of Queen Elizabeth II's 90th Birthday Celebrations at Windsor Getty Images 11/17 Queen Elizabeth II is greeted by Prince Charles, Prince of Wales as she arrives for the final night of her 90th Birthday Celebrations at Windsor Chris Jackson/l/Getty Images 12/17 Queen Elizabeth laughs as she attends the final night of her 90th Birthday Celebrations at Windsor Chris Jackson/l/Getty Images 13/17 Imelda Staunton performs during the televised celebration of the Queen's 90th birthday in the grounds of Windsor Castle in Berkshire PA 14/17 Dame Helen Mirren performs during Queen Elizabeth II's 90th Birthday Celebrations at Home Park, Windsor Ben A. Pruchnie/Getty Images 15/17 Katherine Jenkins performs during Queen Elizabeth II's 90th Birthday Celebrations at Home Park, Windsor Getty Images 16/17 Prince Charles, Prince of Wales greets Dame Shirley Bassey on the final night of Queen Elizabeth II's 90th Birthday Celebrations Chris Jackson/Getty Images 17/17 Beverley Knight performs during Queen Elizabeth II's 90th Birthday Celebrations at Home Park, Windsor Ben A. Pruchnie/Getty Images 1/17 Scenes from the marriage of Britain's Queen Elizabeth II and her husband Prince Philip, Duke of Edinburgh are shown during the final night of The Queen's 90th Birthday Celebrations at the Royal Windsor Horseshow Leon Neal/AFP/Getty Images 2/17 Camilla, Duchess of Cornwall, Prince Philip, Duke of Edinburgh and Catherine, Duchess of Cambridge along with Queen Elizabeth II during the final night of the Queen's 90th Birthday Celebrations at Windsor Chris Jackson/Getty Images 3/17 Anthony McPartlin and Declan Donnelly present the televised celebration of the Queen's 90th birthday in the grounds of Windsor Castle in Berkshire Andrew Matthews/PA 4/17 Australian singer Kylie Minogue performs for The Queen during the final night of The Queen's 90th Birthday Celebrations at the Royal Windsor Horseshow Leon Neal/AFP/Getty Images 5/17 Gary Barlow performs during the televised celebration of the Queen's 90th birthday in the grounds of Windsor Castle in Berkshire Andrew Matthews/PA 6/17 The Royal Cavalry of Oman perform for The Queen during the final night of The Queen's 90th Birthday Celebrations at the Royal Windsor Horseshow Leon Neal/AFP/Getty Images 7/17 A pantomime horse and corgi perform for The Queen during the final night of The Queen's 90th Birthday Celebrations at the Royal Windsor Horseshow Leon Neal/AFP/Getty Images 8/17 James Blunt performs during Queen Elizabeth II's 90th Birthday Celebrations at Home Park, Windsor Ben A. Pruchnie/Getty Images 9/17 Italian singer Andrea Bocelli performs for The Queen during the final night of The Queen's 90th Birthday Celebrations at the Royal Windsor Horseshow Leon Neal/AFP/Getty Images 10/17 Dame Shirley Bassey and Declan Donnelly on the final night of Queen Elizabeth II's 90th Birthday Celebrations at Windsor Getty Images 11/17 Queen Elizabeth II is greeted by Prince Charles, Prince of Wales as she arrives for the final night of her 90th Birthday Celebrations at Windsor Chris Jackson/l/Getty Images 12/17 Queen Elizabeth laughs as she attends the final night of her 90th Birthday Celebrations at Windsor Chris Jackson/l/Getty Images 13/17 Imelda Staunton performs during the televised celebration of the Queen's 90th birthday in the grounds of Windsor Castle in Berkshire PA 14/17 Dame Helen Mirren performs during Queen Elizabeth II's 90th Birthday Celebrations at Home Park, Windsor Ben A. Pruchnie/Getty Images 15/17 Katherine Jenkins performs during Queen Elizabeth II's 90th Birthday Celebrations at Home Park, Windsor Getty Images 16/17 Prince Charles, Prince of Wales greets Dame Shirley Bassey on the final night of Queen Elizabeth II's 90th Birthday Celebrations Chris Jackson/Getty Images 17/17 Beverley Knight performs during Queen Elizabeth II's 90th Birthday Celebrations at Home Park, Windsor Ben A. Pruchnie/Getty Images

The monarch missed church over Christmas due to a heavy cold but is now will undoubtedly be matter of fact about this historic occasion.

In 2015, when she thanked the nation for its kind messages after overtaking Queen Victoria to become the longest-reigning monarch in British history, she admitted bluntly that the royal record was "not one to which I have ever aspired".

She added: "Inevitably, a long life can pass by many milestones. My own is no exception."

The Queen celebrated her 90th birthday last year and had a busy schedule commemorating the occasion, with a walkabout, beacon lighting and a black tie dinner for family and friends in Windsor on her actual birthday.

A weekend of national celebrations, including a party on The Mall, was held for her official birthday in June.

Royal family attend Sandringham Christmas service 2016 6 show all Royal family attend Sandringham Christmas service 2016 1/6 The Queen was not in attendance due to illness PA Wire/PA Images 2/6 Prince Harry outside the church on the Sandringham estate PA Wire/PA Images 3/6 Princess Eugenie leaving the Christmas Day service PA Wire/PA Images 4/6 The Duke of Edinburgh leaving the Christmas service PA Wire/PA Images 5/6 The royal family arriving at the Christmas Day service at St Mary Magdalene Church PA Wire/PA Images 6/6 The Duchess of Cornwall attended the service with Prince Charles PA Wire/PA Images 1/6 The Queen was not in attendance due to illness PA Wire/PA Images 2/6 Prince Harry outside the church on the Sandringham estate PA Wire/PA Images 3/6 Princess Eugenie leaving the Christmas Day service PA Wire/PA Images 4/6 The Duke of Edinburgh leaving the Christmas service PA Wire/PA Images 5/6 The royal family arriving at the Christmas Day service at St Mary Magdalene Church PA Wire/PA Images 6/6 The Duchess of Cornwall attended the service with Prince Charles PA Wire/PA Images

It is likely that any large-scale jubilee celebrations will be reserved for the Platinum Jubilee in 2022 - although any events will take into account the fact that Queen is due to turn 96 that year.

The Duke of Cambridge is about to become a full-time royal this summer and will increase his official duties on behalf of the Queen. William and the Duchess of Cambridge are carrying out an engagement on Monday February 6, but not to do with the Queen's record-breaking reign.

They will be attending Place2Be's Big Assembly at a primary school in north London to mark Children's Mental Health Week.

The anniversary of Elizabeth II's accession to the throne in 1952 is a poignant time for the Queen, marking the day her father George VI died.

She often spends Accession Day privately at Sandringham, having staying there through the Christmas period. She usually makes her return to Buckingham Palace a few days later.

Royal gun salutes will be staged in London on February 6, as is the tradition.

A 41-gun salute will be fired by the King's Troop Royal Horse Artillery in Green Park at noon,

The Band of the Royal Artillery will play a selection of celebratory music close to the firing position, and 89 horses will pull six First World War-era 13-pounder field guns into position in the park.

A 62-gun salute by the Honourable Artillery Company will be fired at the Tower of London at 1pm.