Are 'planned down time' periods scheduled on a regular basis? Schedule available?

Yesterday, the entire Ask LO website was down for an extended period of time, with no indication of when it would be up again, and a non-working (!) website was listed to go to as an alternative in the interim.

Is there any information about this that’s available and able to be checked (re: expected duration, etc.) when it happens? I didn’t see anything at all about it on Twitter (@libreoffice).