It's down again at the same time, this makes me curious https://status.linode.com/incidents/8qnvzrfz7hg2
Seems to be back up.
Outage was between 21:40 and 23:02 UTC by my count.
[edit]
Temperamental
6 mins down again between 23:10 and 23:17 UTC for me.
Surprising to me, since in the last more-than-ten years I think this is the first time it's happened