As EQnoble said, this is due to your user profile settings. What happened is when you first installed Xenforo and setup your admin account, your settings inherited the default settings (including a Timezone that differs than the one you really want). Even though you changed everything in the ACP, that only applies to newly created accounts. Simply update your profile information.
Funny, I noticed the exact same thing today, was driving me crazy changing the settings on both my server and the xenforo installation, rebuilding caches, couldn't figure it out until I found this thread! Great advice guys!
Funny, I noticed the exact same thing today, was driving me crazy changing the settings on both my server and the xenforo installation, rebuilding caches, couldn't figure it out until I found this thread! Great advice guys!