The largest of the Shiva celebrations in the Hindu tradition came just last night, although unfortunately, I did not get this particular blog entry out on time for that.
Still, better late than never, and getting something out was a priority. That said, apologies again for this being late.
According to Leigh Melander's article, MythBlast: Shiva and the Great Dance", the evening of February 24th honors this:
Lord Shiva performed the Tandava, the dance that is the source of the cycles of creation, dissolution, and destruction. Tradition also holds that it was on this day that Shiva and Parvati were married. Religious penance may be found during Shivaratra through a night long practice of meditation and yoga.
MythBlast: Shiva and the Great Dance BY LEIGH MELANDER · FEBRUARY 24, 2017