[time-nuts] What is NIST "official time" ?

[Jean-Louis Oneto]

See from here (France), it is right on time with my M12T GPS, at least when 
I display them side by side oçn my screen. Seems to be better than the 0.4 s 
accuracy annouced.
The derivation of NIST time is described here:
http://www.time.gov/about.html
Best regards,
Jean-Louis
----- Original Message ----- 
From: "Christopher Quarksnow" <cquarksnow at gmail.com>
To: "Discussion of precise time and frequency measurement" 
<time-nuts at febo.com>
Sent: Thursday, August 04, 2011 2:16 PM
Subject: [time-nuts] What is NIST "official time" ?


> Wondering whether anyone can clarify what discipline the Boulder, CO NIST
> facility is broadcasting (or showing on time.gov) and qualified as "The
> official U.S. time".
> It appears to be about 20 seconds slower than UTC and I could not find the
> relation to other known time scales such as TAI, UTC, ET, UT1, GPS or
> possibly grid or broadcast-interconnected reference.
>
> Thanks !
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