You can schedule Google My Business posts in advance from the Jess dashboard. Learn how to schedule your GMB posts and have the appear at a later date and time.
Choose Social/Local Sources then GMB Posting.
Click +New Social/Local Post.
Select the post type and fill the fields.
Click Schedule Now.
Select the date and time you would like to your post to appear on GMB.
Your post will be live on GMB within a few minutes of the posting date and time.