Until the Epiphany on January 6. While the RETAIL Christmas season is over, the HISTORIC Christmas season didn't even start until yesterday, Christmas Day and ends after the 12 Days of Christmas on January 6, the Epiphany. So ours will no longer be turned on after January 6, and weather and time permitting, will come down on the 7th or 8th.
On the other end, Christmas decorations should not be put up more than about 2 weeks before Christmas, and NEVER on the after Thanksgiving.
We still have 2 more Christmas celebrations ahead of us NEXT weekend due to travel and work considerations of family members.