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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
2006-12-30   54099 15.9
2006-12-20   54089 15.5
2006-12-10   54079 14.5
2006-11-30   54069 11.6
2006-11-20   54059 9.8
2006-11-10   54049 2.7
2006-10-31   54039 -4.9
2006-10-21   54029 -11.8
2006-10-11   54019 -14.3
2006-10-01   54009 -14.4
2006-09-21   53999 -13.0
2006-09-11   53989 -8.8
2006-09-01   53979 -5.4
2006-08-22   53969 -0.2
2006-08-12   53959 2.3
2006-08-02   53949 4.2
2006-07-23   53939 6.7
2006-07-13   53929 8.6
2006-07-03   53919 8.3
2006-06-23   53909 8.5
2006-06-13   53899 6.9
2006-06-03   53889 7.1
2006-05-24   53879 6.6
2006-05-14   53869 6.2
2006-05-04   53859 7.0
2006-04-24   53849 6.2
2006-04-14   53839 6.0
2006-04-04   53829 6.2
2006-03-25   53819 5.7
2006-03-15   53809 3.8
2006-03-05   53799 3.2
2006-02-23   53789 2.5
2006-02-13   53779 1.3
2006-02-03   53769 2.0
2006-01-24   53759 2.0
2006-01-14   53749 4.1
2006-01-04   53739 4.1