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NIST Time Scale Data Archive

Updated monthly


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UTC - UTC (NIST)

The deviation of UTC(NIST) from UTC has been less than +/-100 ns since July 6, 1994. The table below shows values of UTC - UTC(NIST) as supplied by the BIPM Circular T for the most recent period in which data are available.

 

UTC - UTC(NIST)Values (at 10-day intervals)

 

 Date

 MJD
 UTC-UTC(NIST)
ns
2012-03-23
56009
-1.9
2012-03-13
55999
-2.3
2012-03-03
55989
-3.4
2012-02-22
55979
-4.7
2012-02-12
55969
-2.7
2012-02-02
55959
-0.8
2012-01-23
55949
1.4
2012-01-13
55939
2.7
2012-01-03
55929
4.5