Facebook Events time zone off by 5 hours

There is an already-opened (yet unresolved) thread on this one, already 3 weeks old
https://premium.wpmudev.org/forums/topic/ultimate-facebook-events-shortcode#post-313322

I would appreciate a little push on this, I have the same problem (events post with a 5-hour incorrect time offset, I have set blog timezone to UCT-5 but nothing changed)

http://trellishouse.org

It may be Facebook propagation issue (i notice events don't seem to post to the site before 12 hours or so, but given an existing of an open ticket, I think this is something that you can look at?

Thanks

Marc