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" <[email protected]>
To: "Discussion of precise time and frequency measurement"
<[email protected]>
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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