Christmas starts in August. It's disgusting. Whenever I point these things out everyone thinks I hate Christmas. I really don't. Christmas joy can't last half a year it's unreasonable. To counter it i only put my tree up 2 weeks before Christmas. I'm not gonna spend all day in Christmas land everywhere then coming home to it.
When I was a kid my family put up the tree the Saturday after Thanksgiving (US), and took it down January 1, all as a family fun thing. I still do that.