National Parks "seasons calendar", for year 2023. Variants of the calendar:
English, weeks starting at Sunday, Letter size, as usual in America.
English, weeks starting at Mondays, A4 size, as usual in Europe and other places.
Serbian, Latin chars, weeks starting at Mondays, A4 paper size
Winter solstice - Wikipedia when daytime is the shortest, on Northern hemisphere.
It is also the beginning of increase of the length of each day's daytime.
A good time for a new start, and a new calendar :)