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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
2015-04-27

57139

4.4

2015-04-17

57129

4.4

2015-04-07

57119

4.5

2015-03-28

57109

4.3

2015-03-18

57099

4.3

2015-03-08

57089

4.2

2015-02-26

57079

3.5

2015-02-16

57069

2.5

2015-02-06

57059

2.5

2015-01-27

57049

3.5

2015-01-17

57039

5.0

2015-01-07

57029

5.8