How do you greet / wish a good time in Esperanto referring to the December festive season but without referring to any specific religion or religious holiday (like Christmas, Hanukah, etc.)?
(I.e., what is nowadays often done in English with neologisms like "Season's greetings".)
Other than Kiel (idiomate) diri "Merry Christmas" en Esperanto?, this question is specifically about religion-neutral greetings. So while it may or may not have the same answer(s) as that other question, it is a different question and not a duplicate.