NIST was 5 μs off UTC after last week's power cut(jeffgeerling.com)
326 points by jtokoph | 142 comments
Jeff Geerling blog post explaining how a multi-day power cut at NIST Boulder caused its ensemble clock to drift 5 microseconds from UTC.
#time-synchronization on Hacker News
3 stories tagged time-synchronization, newest first.
NTP at NIST Boulder Has Lost Power(lists.nanog.org)
461 points by lpage | 199 comments
NANOG mailing list post reposting a NIST notice that the Boulder atomic time scale failed during a power outage, affecting its Internet Time Service NTP servers.
Where does my computer get the time from?(dotat.at)
776 points by fanf2 | 231 comments
Tony Finch's blog post adapting his RIPE meeting lightning talk explaining how computers obtain the time, from NTP servers back to atomic clocks.