This is another WordPress related post. If you have a post that was scheduled to be published, but decided to throw it away before it was published, you can get into trouble if you reconsider.
See, you can’t edit the post, not even the schedule, while it is in the trash.
So, if you pass the time of the scheduled publication time, and you wish to revive the post for further work, it is published immediately.
Henning's blog 