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A comment on NIST was 5 μs off UTC after last week's power cut. Parent comment

Re:NIST was 5 μs off UTC after last week's power cut by esseph on Monday December 22, 2025 @02:25PM (#46357819)
Telecom.

Precision Time Protocol gets you sub-microsecond.

https://en.wikipedia.org/wiki/Precision_Time_Protocol

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