The objective of the symposium, to be held in Lemgo Germany, is to provide a forum for researchers and practitioners from industry, academia, and government involved in the area of Precision Clock Synchronization and Distributed Time-based Applications. Symposium topics: We welcome paper submissions on all areas of precision clock synchronization and distributed time-based applications. Example topics of interest include but are not limited to: Distributed applications based on synchronized clocks: Software and hardware architecture Time-based programming models Design environments and tools Distributed algorithms using or based on synchronized clocks Robustness of distributed time-based systems Fault tolerance in distributed time-based systems Security in distributed time-based systems Application requirements studies Case studies and field experience Analytic, modelling, and simulation studies Time-based cyber-physical systems Time synchronization for robotics and control Time synchronization for cloud computing infrastructure IaaS Data Plane & PaaS Control/Management Plane Clock synchronization technology: Design, usage and research concerning IEEE 1588 Systems with heterogeneous synchronization technologies Synchronization performance test and evaluation tools Analytic, modelling, and simulation studies Clock system management Timing security and robustness Synchronization over gigabit, fibre, and wireless networks Local and wide-area synchronization Servo design for slave clocks Device design and application support Conformance testing and system integration issues Time and frequency distribution Work-In-Progress reports