I ask this question because I can schedule blog posts, tweets and more to "go live" in the future.
It would be convenient to set it up ahead of time, as I sometimes prepare hubs for publication on a certain date. To know that I will have it published on the date of my choice when I press "publish" would allow me to check it off my list. I am on the road often.
I've been publishing hubs for over 4 years. Maybe someday there will be the option to schedule hubs ahead of time.