Sorry to be pedantic, but you mean 9AM EDT or just 9AM Eastern Time if you want to say "9AM in New York" which is what most people mean.

There are still areas of Canada (Southhampton Island) and Central America (Panama IIRC) that are on EST year round.

They were responding to the comment where "9AM EST" was explicitly used. I don't understand the value of your comment as it doesn't serve to clarify - I think most if not all readers would understand the reference.

Yeah, I saw that but I figured both people would see the response if I put it on the child comment since people often only look at comment replies and their children. Conceptually I was replying to both.

There's an hour difference between "9am est" and "9am edt".

I understand, but that was not the point of my comment.

To out pedantic you: the problem only involved Amazon.com not Amazon.ca ;)