I assure you, I posted my answer after the question :-) But I think DST ends today in the US (like, right now); maybe it's related to that.
Looks like this page also suffers from that: http://www.coderanch.com/forums/recentTopics/list/. This very thread is listed below another one I posted to earlier (Web Services - SOAP concept a bit confusing).
Last night, we changed our clocks in the United States (where the server lives.) This means that the hour from 1-2am occurred twice. The second time, posts could appear to be "in the future." For example, if you posted at 1:55 the first time and looked at it 10 minutes later, it would then be 1:05. The times in that thread look linear now which implies the problem corrects itself once that second hour is over.
I do vaguely recall seeing this when coding the feature. But for something unimportant that only happens for an hour year, it wasn't high on my list of worries.
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