U.S. flag

An official website of the United States government

Official websites use .gov
A .gov website belongs to an official government organization in the United States.

Secure .gov websites use HTTPS
A lock ( ) or https:// means you’ve safely connected to the .gov website. Share sensitive information only on official, secure websites.

Physical Measurement Laboratory / Time and Frequency Division

Time Realization and Distribution Group

NIST UTC 2007 Archive

Share

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)

DateMJDUTC-UTC(NIST) ns
2007-12-25  544593.0
2007-12-15  544495.2
2007-12-05  544395.1
2007-11-25  544297.1
2007-11-15  544195.6
2007-11-05  544095.8
2007-10-26  543994.5
2007-10-16  543892.3
2007-10-06  543791.7
2007-09-26  543691.2
2007-09-16  543590.0
2007-09-06  54349-2.1
2007-08-27  54339-3.0
2007-08-17  54329-2.3
2007-08-07  54319-2.4
2007-07-28  54309-1.8
2007-07-18  54299-2.8
2007-07-08  54289-1.7
2007-06-28  54279-0.2
2007-06-18  542692.6
2007-06-08  542592.1
2007-05-29  542495.4
2007-05-19  542397.9
2007-05-09  542299.4
2007-04-29  5421911.2
2007-04-19  5420910.4
2007-04-09  5419911.4
2007-03-30  5418912.5
2007-03-20  5417913.6
2007-03-10  5416915.2
2007-02-28  5415915.2
2007-02-18  5414915.3
2007-02-08  5413914.0
2007-01-29  5412913.3
2007-01-19  5411915.5
2007-01-09  5410916.1
Physics and Time and frequency
Created January 12, 2010, Updated October 7, 2020