You are right, we have been having issues with the time stamps on posts - some not showing up at all, some showing up on the thread *ahead* of the original post, or - as it seems in the case of your thread here - being posted and then not showing up until later.
Thankfully, our IT guys have been hard at work on this problem, and we just heard this afternoon that these issues have now been resolved. The time zone is Eastern Daylight for everyone. We are still off an hour because of Daylight Savings, but they are hoping to have that sorted out early next week.
As always, if you notice anything else around the forum that needs tweaking, or are having any sort of technical issues, please post here in "Ask an Administrator", or shoot a quick email to: firstname.lastname@example.org