The global positioning system (GPS) is the preferred positioning, navigation and timing (PNT) system for a vast number of sectors. Its vulnerabilities, however, haven’t reduced in the last years, exposing critical sectors that rely on timing for their operation. 5G-Advanced networks are well placed to provide wide area resilient time synchronization and positioning services and serve as a complement or, even, alternative to GPS for critical sectors. In this white paper, we describe the requirements for a resilient PNT system and the timing resiliency solution supported by future 5G-Advanced networks.