It displays correctly for me (it shows your post at 8:18, with the edit at 8:19 pm, my time -- which is EST).
I think I see the source of your problem, though. Your preferences were set for a three hour difference, when it should be a negative three hour difference. I've made the modification to your preferences, so things should be appearing correctly for you now.
Let me know if you have any more troubles with this.