NIST was 5 μs off UTC after last week's power cut
jeffgeerling.com
NIST was 5 μs off UTC after last week's power cut
1–10 of 162 posts
Re: NIST was 5 μs off UTC after last week's power cut
#2Gah, just when you think you can trust time.nist.gov
Suggestions from the community for more reliable alternatives?
Re: NIST was 5 μs off UTC after last week's power cut
#3More discussion:
NTP at NIST Boulder Has Lost Power
Re: NIST was 5 μs off UTC after last week's power cut
#4From NPR (22 points) https://news.ycombinator.com/item?id=46351105
Re: NIST was 5 μs off UTC after last week's power cut
#5Gah, just when you think you can trust time.nist.gov Suggestions from the community for more reliable alternatives?
> Gah, just when you think you can trust time.nist.gov
You still can...
If you're that considered about 5 microseconds: Build your own Stratum 1 time server https://github.com/geerlingguy/time-pi
or just use ntppool https://www.ntppool.org/en/
Re: NIST was 5 μs off UTC after last week's power cut
#6Gah, just when you think you can trust time.nist.gov Suggestions from the community for more reliable alternatives?
I'm more concerned about what you think they did to earn your trust in the first place
Re: NIST was 5 μs off UTC after last week's power cut
#7Gah, just when you think you can trust time.nist.gov Suggestions from the community for more reliable alternatives?
their handling it responsibly seems like more evidence for trusting them, not less?
Re: NIST was 5 μs off UTC after last week's power cut
#8I'm missing the nuance or perhaps the difference between the first scenario where sending inaccurate time was worse than sending no time, versus the present where they are sending inaccurate time. Sorry if it's obvious.
Re: NIST was 5 μs off UTC after last week's power cut
#9Gah, just when you think you can trust time.nist.gov Suggestions from the community for more reliable alternatives?
Most places that need accurate time get it from GPS. That is 10-100 ns.
Also, you can use multiple NIST servers. They have ones in Fort Collins, CO and Gaithersburg, MD. Most places shouldn't use NIST directly but Stratum 1 name servers.
Finally, NTP isn't accurate enough, 10-100 ms, for microsecond error to matter.
Re: NIST was 5 μs off UTC after last week's power cut
#10Has anyone here ever needed microsecond precision? Would love to hear about it.