I noticed that on my server EU non-PvP bosses with random spawn usually appear between +1h ss to +12 h ss (it is 11 AM to 10 PM). Of course some of them appear in the middle of our night, but quite rarely, so I have a feeling it is somehow set, that bosses should appear during a day.
I'm curious of bosshunters on SA servers have the same feeling.
Of course I know, that now few people will think: "I met one boss at night so it's not true" - I did it too, but still 90% of bosses (bosses, not mounts) appear during the day in my time zone, on my server.
So, does bosses appearance depend on server's region time zone?