Winter solstice occurs at precisely 6:03pm tonight ET.
After which, the sun will begin its slow northward trek back north, casting additional sunlight and longer days upon those 90% of us that happen to live north of the Equator.
True fact. Only 10% of the human population lives south of the Equator. For them, it is now mid-summer.
We get our turn six long months from now.
That’s in reply to those who do celebrate it.
AND ... I do “note” that an astronomical event occurs (I don’t “observe” it either, because of the usage of the word) ... just like I note another kind of natural event like a tornado ripped through a town or like a hurricane tore up a city, or an earthquake devastated some geographical area ... :-) ...