The darkest evening of the year

A Google search gives split results in whether last night or tonight is the date of the longest sunset-to-sunrise period in the northern hemisphere this year. (Discounting wobble and other complications).

Another topic by @Cerridwyn mentioned this annual moment yesterday.
https://meh.com/forum/topics/joie-to-you-on-this-the-longest-night-1

I always like the quiet and the sense of slowing-down in the human frenzy pace, this time of year: after much holiday seasonal to-do madness; before the harshest winter weather.

Stopping by Woods on a Snowy Evening
BY ROBERT FROST

Whose woods these are I think I know.
His house is in the village though;
He will not see me stopping here
To watch his woods fill up with snow.

My little horse must think it queer
To stop without a farmhouse near
Between the woods and frozen lake
The darkest evening of the year.

He gives his harness bells a shake
To ask if there is some mistake.
The only other sound’s the sweep
Of easy wind and downy flake.

The woods are lovely, dark and deep,
But I have promises to keep,
And miles to go before I sleep,
And miles to go before I sleep.

Happy holidays to all