How to adjust wall Clock offset from PGP servers when SEM Node is connected to the satellite Receiver?

from OIS Consoles we can reset the time even though the accuracy is less than that of the SEM Node because Consoles are applying a wall clock offset to the absolute time.

when the SEM Node is connected to the GPS Time Receiver the accuracy of the SEM NODE will be 13 which is greater than the PGP accuacy "12" so in this case How Can I adjust a Wall Clock offset from PGP Servers ?