This is dumb. You literally have a European server (Luna). There are also far more western players, yet all the western servers are all on UTC.
Why is the idea of setting the European server, Luna, to a european-friendly time zone while simultaneously setting the western servers to a western-friendly time zone (like PST or EST) such a hard concept to grasp?
Why is inconveniencing 75% of your player base the preferable choice?
People aren't going to server hop just to play content a few hours early, because all of their stuff is on another server. And even if they did, who cares?
If the issue is about not having people on UTC miss out on timed content after a patch, just don't start the events right after the patch! It's not like there won't be 4-16 hours of maintenance right after the patch drops anyway.