Down here time can vary greatly. It depends upon temps and rainfall, altitude and latitude. I recently saw a photo posted by one of Melanie's former coworkers. It was from their back deck, which appeared that the home was high up on a mountainside with an unobstructed view. The very top of a long-running ridge was bright oranges, yellows, and reds while everything below was still green.
We have had events where the roadways were covered with brown leaves and other runs where the mountainsides of North Georgia were in their full glorious fall colors. The meteorologists haven't been mentioning fall colors as is their custom, so I expect colors aren't really changing yet.