Are your settings set correctly? I checked and all posts show the correct time for me. Go to User CP/Edit Options and make sure that your time zone and daylight savings time options are correct. If DST is not on auto or on, that may be why you're seeing the incorrect time.
"What, exactly, is the internet? Basically it is a global network exchanging digitized data in such a way that any computer, anywhere, that is equipped with a device called a 'modem', can make a noise like a duck choking on a kazoo." - Dave Barry