We know how much followers hate multiple posts at the same time, this article explains how to schedule your Facebook Page posts.
Login to Facebook as one of the page admins.
Click the "gear" in the top right and choose your page.
Go to your status and click the "clock icon" on the bottom left of your post.
Set the date/time that you want to post, then write your post, click schedule.
You can view/modify posts you have set in the "Activity Manager".
View the Official Facebook Documentation