The Prime Minister is due to set out plans to mark the centenary of the start of the First World War.
David Cameron will give a speech on remembrance in London later.
A poll by independent think-tank British Future, one month ahead of Remembrance Day, found 69% of people believe the milestone will be a once-in-a-generation moment and an opportunity to mark the nation's shared history.
It showed the public wanted to mark Remembrance Sunday 2014, the centenary of the First World War, as a special national day.
British Future is calling for shops to be closed, sports games moved to other days and a longer period of silence to be observed to mark the day.
According to the survey's findings, 83% of respondents think bells should ring across the country after a period of silence, while 87% think all flags across Britain should fly at half mast throughout the day.
The poll of 1,782 adults also suggested 54% think major sports games should be moved to other days, with 34% against, while it found an even 45% split on whether shops should close.
Sunder Katwala, director of British Future, said: "The centenary of the Great War should be the next great national moment bringing us together as the Jubilee and Olympics did this year.
He added there was a need to decide how to mark the day, adding: "Should this be a special Sunday where we close the shops and have a football-free day and find ways to bring us together and understand our history and the country we have become?"