I'm keeping a photoblog at http://mihaibalan.wordpress.com/ and I needed to post a few items in the future as I wasn't able to post for a few days. Unfortunately, those posts did not show up at the time date that I set, and not even hours after (initially I suspected a synchronization problem). If however I edited those posts, even by simply adding a space, the post shows up, at the date set, but TOO LATE (that is, after I edit it).
I tried this once again today, and the result was the same. Posting at 13:42 and scheduling for 13:44, the page was invisible to outside users even after 14:00.
An official answer would be most welcome, as deleting and resposting is NOT an option (as someone suggested doing), because, I won't have Internet access to do it :(