If a Manager has scheduled a post to send at a later date, that post can still be adjusted to send at a different time, edited, or deleted. 

Step 1: Click The Managers Toolbox on the right of the tabs bar of your Group

Step 2: Click Scheduled Posts

Step 3: Click the three vertical dots to view the Post Options menu

or

Step 4: Click Edit to edit the post, or you can choose to publish, reschedule or delete it

If you select unschedule the post will return to your drafts folder where you can schedule the post at a later date.

Note: All times for scheduling correspond to your current timezone unless you’ve manually changed it.