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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
2003-12-26   52999 -4.0
2003-12-16   52989 -2.8
2003-12-06   52979 -0.2
2003-11-26   52969 -1.1
2003-11-16   52959 2.0
2003-11-06   52949 2.1
2003-10-27   52939 1.8
2003-10-17   52929 1.2
2003-10-07   52919 3.9
2003-09-27   52909 7.9
2003-09-17   52899 7.5
2003-09-07   52889 7.6
2003-08-28   52879 7.7
2003-08-18   52869 8.0
2003-08-08   52859 10.2
2003-07-29   52849 10.7
2003-07-19   52839 12.7
2003-07-09   52829 12.6
2003-06-29   52819 9.2
2003-06-19   52809 7.5
2003-06-09   52799 3.8
2003-05-30   52789 0.6
2003-05-20   52779 4.0
2003-05-10   52769 10.4
2003-04-30   52759 8.9
2003-04-20   52749 10.7
2003-04-10   52739 10.9
2003-03-31   52729 11.0
2003-03-21   52719 12.0
2003-03-11   52709 11.0
2003-03-01   52699 7.0
2003-02-19   52689 8.0
2003-02-09   52679 7.0
2003-01-30   52669 2.0
2003-01-20   52659 -1.0
2003-01-10   52649 -5.0