In a NAV environment which uses SSL certificate to secure connections, the system will check the time on the workstation, where the NAV Client runs, and the NAV server to make sure they are matched or within an acceptable range. If the difference is out of the range, you will receive following messages when launching NAV Client or performing a task within the application.

You must update your workstation time to match what the server timezone/current time is.  It is recommended to enable "Set Time Automatically" and to auto adjust for daylight saving time on the server (ODT is responsible for managing a hosted NAV server) and your client workstations.