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NIST Time Scale Data Archive

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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
2005-12-25   53729 3.7
2005-12-15   53719 2.6
2005-12-05   53709 3.4
2005-11-25   53699 0.1
2005-11-15   53689 -4.3
2005-11-05   53679 -7.2
2005-10-26   53669 -9.7
2005-10-16   53659 -11.5
2005-10-06   53649 -12.2
2005-09-26   53639 -12.7
2005-09-16   53629 -12.6
2005-09-06   53619 -11.8
2005-08-27   53609 -11.6
2005-08-17   53599 -10.3
2005-08-07   53589 -6.1
2005-07-28   53579 -1.9
2005-07-18   53569 4.3
2005-07-08   53559 8.4
2005-06-28   53549 10.5
2005-06-18   53539 15.6
2005-06-08   53529 14
2005-05-29   53519 8.4
2005-05-19   53509 5.7
2005-05-09  53499 3.4
2005-04-29   53489 1.4
2005-04-19   53479 1.8
2005-04-09   53469 0.6
2005-03-30   53459 -1.1
2005-03-20   53449 -2.2
2005-03-10   53439 -3.6
2005-02-28   53429 -2.2
2005-02-18   53419 -1.8
2005-02-08   53409 -1.8
2005-01-29   53399 -1.7
2005-01-19   53389 0.8
2005-01-09   53379 1.3