I have the funkiest coding error, ever!

1. What error do you get if any? My posts are not posted in chronological time order.
2. What was the last thing you did before the error? I changed my forum time to -6:00 GMT
3. What browser and version do you run? AM Browser 2.0.0 RC2

So basically, since I changed my forum time to match my GMT time in Toronto, a few of my posts are posted 6 hours prior to when I've actually posted. The result is that my post falls way behind in discussions, but this has happened in some threads and not others. It's a really odd code overlook!

ETA

For example, in this thread my post was supposed to follow CUTUP where s/he says:

However, my post is listed several responses prior to that one. See thread here:

I got scammed by someone who is potentially a member here.

I suppose I'll change my GMT settings back to 0:00 GMT, but I want to see my Toronto time. =/