The intrinsic value of high accuracy time transfer is that it’s not enough to have the right time one must also have the right time at the right place. The right place could range from data centers requiring precise event timestamping to efficiently support artificial intelligence to coordinating radio assets such as cell towers to support every increasing demand for capacity, bandwidth and speed. Optical networks and associated clock systems play a key role already.  The optical networks are already well established and the growing need for accuracy and resilient time can be supported with existing deployed network in a cost effective and scalable manner. This presentation shows real world examples of high accuracy optical time transfer relating to both current high accuracy time transfer standards such ITU and G8271.1 as well as emerging coherent network time standards that can operate without satellite dependencies.  Operational aspects such as performance under fiber cuts and power outages are explored as well as alternative distribution approaches to support cost effective operation over real-world optical networks.