The length of time the bow case Password expired, days without if Password has expired, but still in the range, the system will still allow Grace time User can Login to access it.
The grace period to use the Password expired. Is measured by the Password Expiration Grace time to be still in the system will still allow the Login User can access it.
Use case Password bow period expired, there is Password unit by the expired, but also in the range. Grace time system will still allow User can Login accessible.