The National Institute of Standards and Technology has warned that several of its Internet Time Service servers could be providing inaccurate time following a failure of the primary atomic time scale, NIST-F4, at its Boulder, Colorado campus. The alert was posted to NIST’s public Internet Time Service mailing list after a prolonged utility power outage disrupted the facility on December 17, with engineers still working to fully restore normal operations several days later.
According to NIST, the…