ORA-28307
        The directory current time timestamp is not valid.
        - timestamp: The current time in the directory.
        Cause
        Either the directory service time was earlier than the year 1900, or the format was incorrect.
        Action
        Ensure that the directory service clock is set properly.
        
     
    
    
        ORA-28307
        The directory current time string is unreasonable.
        
        
        Cause
        Either the directory service time was earlier than year 1900, or the format was incorrect.
        Action
        Ensure that the directory service clock is set properly.
        
     
    
    
        ORA-28307
        The directory current time string is unreasonable.
        
        
        Cause
        Either the directory service time was earlier than year 1900, or the format was incorrect.
        Action
        Ensure that the directory service clock is set properly.