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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
2014-08-30
56899
4.6
2014-08-20
56889
3.8
2014-08-10
56879
4.1
2014-07-31
56869
4.5
2014-07-21
56859
4.9
2014-07-11
56849
5.0
2014-07-01
56839
5.1
2014-06-21
56829
4.8
2014-06-11
56819
5.4
2014-06-01
56809
6.4
2014-05-22
56799
6.0
2014-05-12
56789
5.9
2014-05-02
567779
5.5
2014-04-22
56769
5.2
2014-04-12
56759
5.5
2014-04-02
56749
6.0
2014-03-23
56739
5.8
2014-03-13
56729
6.3
2014-03-03
56719
5.7
2014-02-21
56709
5.1
2014-02-11
56699
4.3
2014-02-01
56689
3.2
2014-01-22
56679
2.1
2014-01-12
56669
0.6
2014-01-02
56659
-0.7