Im using eXtCal for XOOPS 2.2.x for the event calendar on my website and its off by a day how do i fix this.

I'm not sure but i think it would run off the system time and server setting set in system preferences.I live in Michigan which is eastern us.Says -5 gmt whether thats right or not never heard of any of the places in that setting Lima???

or might there be something up in the code?
thought i saw something awhile back about an issue like that but can't find it.

Any help?