As critical infrastructures increasingly depend on precise and trustworthy time synchronization, the need for strong cryptographic protection of timing protocols has become paramount. The Network Time Security (NTS) protocol, developed within the IETF to secure the Network Time Protocol (NTP), provides a modern, standards-based framework for authenticating time sources and mitigating spoofing and replay attacks. NTS introduces a two-step mechanism that separates key establishment from time exchange, using Transport Layer Security (TLS) for the former and authenticated extension fields for the latter. This approach delivers strong cryptographic assurance while maintaining backward compatibility with existing NTP deployments. Building on the success of NTS for NTP, current research and standards work are focused on extending similar security properties to other time synchronization protocols. This presentation explores the application of NTS to the IEEE 1588 Precision Time Protocol (PTP) and the IEEE 1588.1 Client-Server Precision Time Protocol (CSPTP), each of which presents unique challenges in design and deployment. PTP and CSPTP operate in high-precision and often hardware-assisted environments where introducing authentication, key management, and replay protection must not compromise sub-microsecond accuracy. The talk will provide a concise overview of NTS for NTP, outline motivations for extending its concepts to PTP and CSPTP, and describe design approaches under discussion in the IETF and IEEE communities. It will also present a possible timeline for the ongoing work, review the current state of specification development, and identify early prototype implementations and interoperability testing efforts. Particular attention will be given to deployment models, scalability considerations, and coordination between standards bodies to ensure cohesive security across protocol layers and use cases. By integrating NTS with PTP and CSPTP, the time synchronization ecosystem can move toward a unified, scalable, and cryptographically strong security model that meets the demands of modern networked systems—from industrial automation and telecommunications to finance and power distribution. Attendees will gain an understanding of how NTS-based mechanisms can enhance trust, resilience, and precision across the entire spectrum of time synchronization technologies.