Active Directory Integration is setup on the SSIM and a synchronization time is scheduled. The synchronization is not happening at the scheduled time, but shortly after instead.
There are two ways to stop the delay and have the Synchronization occur on time.
SSIM setup to Integrate with Active Directory on a Schedule.
Active Directory Integration Configuration is setup using the Hostname of the Domain Controller and the Hostname and IP Address have not been added to the Hosts file of the SSIM.