I've noticed talking to Group mates that the Event times go off your local clock. So that would be what time the event ends for you. As for the server, the event ends pretty much at Midnight Wednesday night/Thursday morning. This also normally happens right when the server goes down for it's weekly update.

What is the time difference for you on the server you are playing on? Is 16:00 your time 24:00 (or 00:00) for the server local time?

Yeah, sadly I can't confirm this since I'm playing on a server in my own time zone. I was just letting people know what I've been told.
Since I'm at the same time as the server I'm on, this is what mine shows:

http://forum.naruto.oasgames.com/en/forum.php?mod=image&aid=6854&size=300x300&key=2118d9ddfba9448e&nocache=yes&type=fixnone
This post was last edited by Maroner at 2016-10-18 18:37