The graphic stats are good... however the global stats are counted correctly throughout the day... until midnight.. and at midnight stats change and go back tens or thousands of visitors or pages viewed. It is some issue with the time zone as you say?
The time zone was not adjusted. I have adjusted it right now... though I may know stats will not work correctly despite this update.
The only reality is my webcomic should have at least 300 or 400 visits more than when the issue began. Also the pages viewed should have at least 3000 more than those shown given that my average is 500 a day.