Network Time Protocol from a Distributed Timescale Traceable to UTC

Peter Löthberg, Ragnar Sundblad, Rolf Andersson, Stefan Liström, Sven-Christian Ebenhag

Abstract:	A nationwide robust distributed time scale and network time and frequency distribution infrastructure is implemented in Sweden. The system has been under evaluation since May 2015 and was started as an active service in December 2015. The six local time scales are traceable to UTC within ± 250 ns and NTP time is distributed using customized high performance servers. All output is externally monitored for independent quality and performance assessment.
Published in:	Proceedings of the 47th Annual Precise Time and Time Interval Systems and Applications Meeting January 25 - 28, 2016 Hyatt Regency Monterey Monterey, California
Pages:	187 - 192
Cite this article:	Löthberg, Peter, Sundblad, Ragnar, Andersson, Rolf, Liström, Stefan, Ebenhag, Sven-Christian, "Network Time Protocol from a Distributed Timescale Traceable to UTC," Proceedings of the 47th Annual Precise Time and Time Interval Systems and Applications Meeting, Monterey, California, January 2016, pp. 187-192. https://doi.org/10.33012/2016.13163
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