It usually goes up on 13/12, 12 days before Christmas, and comes down on NYE.
This year it went up on 14th and the kids asked to pull it down this morning. I've just finished vacuuming up the tiny little plastic bits it seems to shed.
I think this might have been that trees last year, Hubs wants a new one that sheds less. I don't want a new one, that will mean buying new deco's and I can't be bothered.