Abstract: A system for achieving Precision Time Protocol (PTP) redundancy and load balancing across a set of active time servers deployed in a cluster is disclosed. The system may organize a set of PTP Grandmasters (GMs) (e.g., located in a datacenter) into a plurality of PTP clusters (e.g., for load balancing). A set of PTP ordinary clocks (OCs) (e.g., time clients) may be grouped in OC Groups and then into PTP clusters for GM assignation, wherein each PTP OC includes a unicast master table (UMT) that includes one or more potential PTP GM port addresses and priority values. Based on a Master Clock Mechanism, one of the potential GMs may be selected based on one or more PTP GM priority attributes.