Today is the day.
https://scpcb.gamepedia.com/Main_Menu#SCP-990
"It will happen on 2 February 2020"
"15:25"
3:25 PM. (Edited: EST)

It has changed. For those willing, please, check the link again. It is different and I believe at that time an event will take place.
For those unwilling, It is 10:12 pm EST today.
I would check the forums, the wiki, and the blog and possibly even the game.

today is the day