In case you wish to publish a wordpress blog post in future then you can schedule the publication date rather than saving them as draft and publishing every day or posting every day.
This is a very useful feature in case you wish to write more than one post a day but would like to post them in future on regular itnervals.
To schedule a post in future, you can change the publication date from the Publish tab in right column in Admin.
While you are writing post (of if you have already saved the post then edit it) click on Edit in “Publish immediately Edit” line.
It will open date edit box. Change the date to be the one when you want to publish it and click on OK.
Next click on the Schedule to accept the changes.
Once it is done you will see that publication date is changed successfully.
Click on Update Post to save any changes and you are done.