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UTC-UTC (NIST) correlation

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
2021-09-22 59479 -2.1
2021-09-12 59469 -1.2
2021-09-02 59459 -0.1
2021-08-23 59449 0.6
2021-08-13 59439 0.1
2021-08-03 59429 -0.8
2021-07-24 59419 -2
2021-07-14 59409 -1.7
2021-07-04 59399 -0.6
2021-06-24 59389 -0.5
2021-06-14 59379 -0.8
2021-06-04 59369 -1.5
2021-05-25 59359 -0.6
2021-05-15 59349 1.7
2021-05-05 59339 2.2
2021-04-25 59329 1.1
2021-04-15 59319 0.2
2021-04-05 59309 0.7
2021-03-26 59299 0
2021-03-16 59289 -1.1
2021-03-06 59279 -1
2021-02-24 59269 -0.5
2021-02-14 59259 -0.4
2021-02-04 59249 0.6
2021-01-25 59239 -0.5
2021-01-15 59229 -1
2021-01-05 59219 -1
Created September 18, 2009, Updated December 2, 2021