If you don’t want your page to go live right away, you can choose a date and time you would like it to go live at the top of the editor. Once you have a date and time selected, you can publish your page. It won’t go live until the date and time you selected occurs.
If this is a page that you only want up for a certain time period, you can also give your page an end date. Once this time period is over, your default homepage will be displayed.
Learn more about Targeting and Scheduling Content