I think it depends on the event or part of the country. Some Veterans Day activities include a moment of silence while others do not. It's not something that is done together as a country though which I think is a shame.
My father was in both the Navy and Marines.
I think when you have a link to it, it somehow seems different. For example My Dad's Father served in the Canadian Navy and my Mum's Dad was in the British Navy during WWII.
There isn't a general observation like that here in the USA. In some organized events there will be but in most 11:00 am passes without notice. Many people here don't even realize why Veterans Day is on the 11/11, leave alone the 11th hour. When I was growing up Veterans Day moved from being observed on 11/11 to the second Monday in November (to give a 3-day weekend) and only moved back to 11/11 after quite a bit of pressure. I know that many states don't observe Veterans Day as a holiday and many schools around the country do not get the day off.
That's sounds almost shameful to me. I know here in Ontario, Canada, it's only a holiday for the government, but schools and everything else is still open. In fact the Royal Canadian Legion actually encourages the fact that it is not a day off from school they want people to learn what there sacrifice was for "last We Forget"!
n Flanders fields the poppies blow
Between the crosses, row on row,
That mark our place; and in the sky
The larks, still bravely singing, fly
Scarce heard amid the guns below.
We are the Dead. Short days ago
We lived, felt dawn, saw sunset glow,
Loved and were loved, and now we lie
In Flanders fields.
Take up our quarrel with the foe:
To you from failing hands we throw
The torch; be yours to hold it high.
If ye break faith with us who die
We shall not sleep, though poppies grow
In Flanders fields.