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Requirements for wallclock: (2757789531000) Provide the best possible time transfer over arbritrary networks between clients and servers. (Target: average better than 1ms) Make use of any available HW support. (low power) Secure identification of time source UTC(k). Secure transfer client-server-client without (too much) server state. Identifying size of time errors between UTC(k) and server. Capable of handling leap seconds correctly. Require no external data (other source of information) to determine the correct time and date. (like 2e32 seconds) Standardized API and host representation of time and timescale (and make this independent of wire format). Maybe planet independent? Wire protocol and algorithms to be separated Future wire format to support 1 picosecond resolution |