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NIST UTC 2009 Archive
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 |
|---|---|---|
| 2009-12-24 | 55189 | 16.0 |
| 2009-12-14 | 55179 | 17.9 |
| 2009-12-04 | 55169 | 18.1 |
| 2009-11-24 | 55159 | 15.6 |
| 2009-11-14 | 55149 | 14.1 |
| 2009-11-04 | 55139 | 7.8 |
| 2009-10-25 | 55129 | 3.9 |
| 2009-10-15 | 55119 | 0.6 |
| 2009-10-05 | 55109 | -5.2 |
| 2009-09-25 | 55099 | -10.2 |
| 2009-09-15 | 55089 | -13.8 |
| 2009-09-05 | 55089 | -15.1 |
| 2009-08-26 | 55069 | -15.8 |
| 2009-08-16 | 55059 | -16.4 |
| 2009-08-06 | 55049 | -14.7 |
| 2009-07-27 | 55039 | -12.3 |
| 2009-07-17 | 55029 | -9.6 |
| 2009-07-07 | 55019 | -4.9 |
| 2009-06-27 | 55009 | 0 |
| 2009-06-17 | 54999 | 4.7 |
| 2009-06-07 | 55989 | 5.7 |
| 2009-05-28 | 54979 | 10.3 |
| 2009-05-18 | 54969 | 11.2 |
| 2009-05-08 | 54959 | 10.8 |
| 2009-04-28 | 54949 | 9.7 |
| 2009-04-18 | 54939 | 7.0 |
| 2009-04-08 | 54929 | 10.0 |
| 2009-03-29 | 54919 | 7.5 |
| 2009-03-18 | 54909 | 7.1 |
| 2009-03-09 | 54899 | 4.9 |
| 2009-02-27 | 54889 | 4.3 |
| 2009-02-17 | 54879 | 2.0 |
| 2009-02-07 | 54869 | 1.7 |
| 2009-01-28 | 54859 | 3.9 |
| 2009-01-18 | 54849 | 3.9 |
| 2009-01-08 | 54839 | 4.0 |
Created February 22, 2010, Updated January 2, 2026