The chart is set for my location at noon sharp, but take heed of this aspect even if you're living further to the west or east. Moon in Scorpio is not such a pleasant time for a holiday. I imagine families getting together in larger or smaller numbers and instead of enjoying themselves, they may end up remembering old grudges and settling old scores.
Additionally, this Christmas will bless us with a not so beautiful Moon square Mars retro. Mars in Leo can be tyrant or at least extremely bossy and the fact it's retro will probably cause people to boil with rage. They will probably release that rage in the form of venomous stings toward others so you can imagine this isn't the best setting for a holiday gathering. I wouldn't exclude termpers to flair as well, but I suspect the former scenario is more likely to play out. Nevertheless, do be careful and try drinking yourself to sleep instead of into a fight (like someone I know).
The aspect will be exact around late afternoon, early evening my time, just when people are usually in the midst of thir Christmas dinner, hence why I've chosen this timezone for the chart. But be aware of it regardless of timezone, especially if you start partying early on or party well into the night.