I don’t have a Facebook account but sometimes I end up on Facebook when searching for events such a concerts and exhibitions.
Lately Facebook has started showing the wrong time zone when you are not logged in.
For example, this event shows Friday, June 25, 2021 at 11.00 UNK-14.00 UNK.
I guess that UNK means unknown?
Is the a bug in Facebook or are the trying to annoy people who are not logged in, hoping to make them create an account?