Requested feature overview description.
Please change the server time to something fitting the main audience i.e. the United States. I suggest Central or Mountain time so as to split the difference between the coasts.

Why would it be useful?
Having a U.S.-relevant server time would make the date stamps correspond more closely to the time/date as experienced by users. In particular, my goal is to make the window for each day within the Popular art category correspond to the date art is posted. Right now, you can post something mid-day and have it count towards yesterday's popular art category, ensuring your post is utterly swamped by stuff posted the night before. The current server time unfairly biases the Popular art category to favor artwork posted by a small number of people in overseas timezones.

What part(s) of the site page(s) are affected?
This would affect all pages with date/time stamps.