At league clubs around Australia the remembrance silence has become part of the nightly nine o'clock ritual, when any light other than a memorial flame is dimmed, members stand in silence, and then recite the Ode.
A brief silence, usually one or two minutes, characterises many other remembrance ceremonies throughout the British Commonwealth.
The concept of a remembrance silence appears to have originated with an Australian journalist, Edward George Honey...
...Honey published a letter in the London Evening News on 8 May 1919 under the pen name of Warren Foster, in which he appealed for five-minute silence amid all the joy making planned to celebrate the first anniversary of the end of the War.
...Sir Percy wrote, 'When we are gone it may help bring home to those who will come after us, the meaning, the nobility and the unselfishness of the great sacrifice by which their freedom was assured'
https://m.reddit.com/r/Military/comments/2lvv6t/remembrance_day/
The Ode:
They shall grow not old,as we who are left grow old.
Age shall not weary them nor the years condemn.
At the going down of the sun, and in the morning,
We will remember them.