Once you have composed your post you can choose to publish your post straight away or you can choose the time you would like it published. This tutorial will show you how you can select the time that you would like to have the post published using the timestamp feature in WordPress.
To begin using WordPress go to the elearning site and enrol. Its completely free to do so of course. And please feel free to add to the knowldedge base in the forums and wikis.