NIST's NTP clock was microseconds from disaster

Published at : 23 Dec 2025

...but most people would never know.

The two posts referenced in this video:

- Primary time scale failure: https://groups.google.com/a/list.nist.gov/g/internet-time-service/c/o0dDDcr1a8I
- Update on Internet Time Services: https://groups.google.com/a/list.nist.gov/g/internet-time-service/c/OHOO_1OYjLY

Also check out the status of all NIST Internet Time Servers: https://tf.nist.gov/tf-cgi/servers.cgi

Thumbnail photos were adapted from Wikipedia Commons / US Government Public domain images:

- https://www.nist.gov/pml/time-and-frequency-division/time-and-frequency-metrology-and-distribution
- https://www.nist.gov/topics/physics/optical-frequency-combs

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Contents:

00:00 - 5 microseconds
00:39 - What happened?
02:15 - NTP timing and why it doesn't matter
03:17 - Timely lessons