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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
2009-12-245518916.0
2009-12-145517917.9
2009-12-045516918.1
2009-11-245515915.6
2009-11-145514914.1
2009-11-04551397.8
2009-10-25551293.9
2009-10-15551190.6
2009-10-0555109-5.2
2009-09-2555099-10.2
2009-09-1555089-13.8
2009-09-0555089-15.1
2009-08-2655069-15.8
2009-08-1655059-16.4
2009-08-0655049-14.7
2009-07-2755039-12.3
2009-07-1755029-9.6
2009-07-0755019-4.9
2009-06-27550090
2009-06-17549994.7
2009-06-07559895.7
2009-05-285497910.3
2009-05-185496911.2
2009-05-085495910.8
2009-04-28549499.7
2009-04-18549397.0
2009-04-085492910.0
2009-03-29549197.5
2009-03-18549097.1
2009-03-09548994.9
2009-02-27548894.3
2009-02-17548792.0
2009-02-07548691.7
2009-01-28548593.9
2009-01-18548493.9
2009-01-08548394.0
Created February 22, 2010, Updated October 7, 2020