This is for On-Prem Security Validation only.
The Network Settings page lets you edit the Director's management IP, DNS servers, and NTP time servers. The Director can also be rebooted from this screen once network settings have been updated.
If you used installable software and not an image, you must configure a time service on your operating system. Then go to the Network Setting and page and set Director Time to Use System Time. Actors installed using installable software must be configured to Use System Time, as discussed on Editing an Actor.
Network Settings page
If security updates are available that need to be applied when you click Reboot, the system will notify you. This way, you are aware of the added time the reboot will take and can complete the reboot later if necessary.