@satul Sorry Mate what is your Nationality?
The EN Server is an International Server for all those that doesn't have a dedicated Server... There are 206 sovereign states. This server is for the 190 that doesn't have a dedicated server hence it is called the international server. If you want a night bonus based around the UK or what ever time you wish, ask them to make a new server for you or use the server that already exists.
Just because you have only been in contact with 3 or 4 players that isn't in the EU doesn't mean there aren't players out there. And as you said it is only 8 hours so why even bother implementing it...
And if you where to attack someone in your waking hours when they are in Australia Sleeping, wouldn't that make you a coward as well or are you just never going to attack an Australian then because you sleep when he is awake, and awake when he is asleep?
That is all