Quote Originally Posted by Jandor View Post
I did mean astronomical, got it backwards with meteorologists, who are the ones that use the same definition I do where December is in Winter.

As for 90% of the English-speaking world using the astronomical definition, nah, they very clearly don't. In every day use pretty much everyone uses the "meteorological" definition.
Most have no idea about any actual seasons other than Summer Sun, Spring Rain, Fall leaves, and Winter Snow. Meteorological definition is extremely imprecise and too wildly variable to make any timed plans around.