I am not sure the exact time zone of this game (maybe Greenwich Mean Time?). I'm in North America and it appears that any displayed schedule in Grid-Iron is different from that in my time zone, Eastern Standard Time (EST). It's kinda inconvenient for me to figure out the correct time of my matches. Could administers figure out a way to adjust it for players in different time zone? Thanks.

I`d say the time zone is CET (Central European Time), +1 timezone.