timed

timed (time daemon) is an operating system program that maintains the system time in synchronization with time servers using the Time Synchronization Protocol (TSP) developed by Riccardo Gusella and Stefano Zatti[1]. Gusella and Zatti had done earlier related work on their TEMPO algorithm.[2] The Time Synchronization Protocol specification refers an election algorithm[3] and a synchronization mechanism specified in other technical reports listed as "to appear".

timed
Operating systemmacOS, FreeBSD

With the release of macOS High Sierra in 2017, timed in macOS has subsumed all time synchronization responsibilities including those of the former ntpd and timed.[4]

See also

References
  1. Gusella, Riccardo; Zatti, Stefano (June 1985). The Berkeley UNIX 4.3BSD Time Synchronization Protocol (Technical report). Computer Science Division (EECS) University of California, Berkeley. CSD-85-250.
  2. Gusella, Riccardo; Zatti, Stefano (December 1983). TEMPO: A Network Time Controller for a Distributed Berkeley UNIX System (Technical report). Computer Science Division (EECS) University of California, Berkeley. CSD-83-163.
  3. Gusella, Riccardo; Zatti, Stefano (December 1985). An Election Algorithm for a Distributed Clock Synchronization Program (Technical report). Computer Science Division (EECS) University of California, Berkeley. CSD-86-275.
  4. hoakley (October 27, 2017). "Has anyone got the time? How High Sierra has changed time synchronisation". The Eclectic Light Company. Retrieved 2018-12-07.
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