A few notes that might help:
The timezone setting within the forums is ONLY for the forums and does not have any affect on the FitDay application - Classic or 2.0.
FitDay Classic - we added a timezone setting in the user profile that addresses the issues that some have reported. This was added last Friday (12/16)
FitDay 2.0 Beta - does not rely on any settings. It uses your computers time and timezone settings to perform all date calculations. Some adjustments were also made to the Beta on Friday.
Our QA team has tested and confirmed that timezones are being handled correctly.
Please try out the new setting in classic and report any issues here. I will continue to monitor this thread.