Acronyms and locations of the timing centres

Leap seconds table (from IERS)

Values of the differences between UTC and its local representation by the given laboratory, including relevant notes and, since January 2007, the respective uncertainties.

UTC aos UTC apl UTC aus UTC bev UTC bfkh UTC bim UTC birm UTC bom UTC by UTC cao UTC ch UTC cnes UTC cnm UTC cnmp UTC crl UTC csao UTC csir UTC dfnt UTC dlr UTC dmdm UTC dtag UTC eim UTC estc UTC gum UTC hko UTC ice UTC idn UTC ien UTC ifag UTC igma UTC igna UTC imbh UTC incp UTC inm UTC inpl UTC inti UTC inxe UTC ipq UTC it UTC jatc UTC jv UTC kebs UTC kim UTC kris UTC kz UTC lds UTC lrte UTC lt UTC lux UTC lv UTC masm UTC mbm UTC mike UTC mkeh UTC msl UTC mtc UTC nao UTC nict UTC nim UTC nimb UTC nimt UTC nis UTC nist UTC nmc UTC nmij UTC nmls UTC npl UTC npli UTC nrc UTC nrl UTC nrlm UTC nsai UTC ntsc UTC omh UTC onba UTC onrj UTC op UTC orb UTC pl UTC psb UTC ptb UTC roa UTC saso UTC scl UTC sg UTC siq UTC sl UTC smd UTC smu UTC so UTC sp UTC su UTC tcc UTC tl UTC tp UTC tug UTC ua UTC uae UTC ume UTC usno UTC vmi UTC vsl UTC za UTC zmdm

Values of the differences between TAI and the local atomic scale of the given laboratory, including relevant notes

TAI usno TAI tl TAI su TAI so TAI sg TAI ptb TAI pl TAI onrj TAI ntsc TAI nrc TAI nml TAI nist TAI nict TAI kris TAI jatc TAI it TAI inpl TAI ien TAI f TAI csao TAI crl TAI cnm TAI ch TAI aus TAI apl TAI amc

Relations of UTC and TAI with predictions of UTC(k) disseminated by GNSS and with the GNSS times

Weights of clocks participating in the computation of TAI

period 20.12 [December 2020] period 20.11 [November 2020] period 20.10 [October 2020] period 20.09 [September 2020] period 20.08 [August 2020] period 20.07 [July 2020] period 20.06 [June 2020] period 20.05 [May 2020] period 20.04 [April 2020] period 20.03 [March 2020] period 20.02 [ February 2020] period 20.01 [January 2020] period 19.12 [December 2019] period 19.11 [November 2019] period 19.10 [October 2019] period 19.09 [September 2019] period 19.08 [August 2019] period 19.07 [July 2019] period 19.06 [June 2019] period 19.05 [May 2019] period 19.04 [April 2019] period 19.03 [March 2019] period 19.02 [ February 2019] period 19.01 [January 2019] period 18.12 [December 2018] period 18.11 [November 2018] period 18.10 [October 2018] period 18.09 [September 2018] period 18.08 [August 2018] period 18.07 [July 2018] period 18.06 [June 2018] period 18.05 [May 2018] period 18.04 [April 2018] period 18.03 [March 2018] period 18.02 [ February 2018] period 18.01 [January 2018] period 17.12 [December 2017] period 17.11 [November 2017] period 17.10 [October 2017] period 17.09 [September 2017] period 17.08 [August 2017] period 17.07 [July 2017] period 17.06 [June 2017] period 17.05 [May 2017] period 17.04 [April 2017] period 17.03 [March 2017] period 17.02 [ February 2017] period 17.01 [January 2017] period 16.12 [December 2016] period 16.11 [November 2016] period 16.10 [October 2016] period 16.09 [September 2016] period 16.08 [August 2016] period 16.07 [July 2016] period 16.06 [June 2016] period 16.05 [May 2016] period 16.04 [April 2016] period 16.03 [March 2016] period 16.02 [ February 2016] period 16.01 [January 2016] period 15.12 [December 2015] period 15.11 [November 2015] period 15.10 [October 2015] period 15.09 [September 2015] period 15.08 [August 2015] period 15.07 [July 2015] period 15.06 [June 2015] period 15.05 [May 2015] period 15.04 [April 2015] period 15.03 [March 2015] period 15.02 [ February 2015] period 15.01 [January 2015] period 14.12 [December 2014] period 14.11 [November 2014] period 14.10 [October 2014] period 14.09 [September 2014] period 14.08 [August 2014] period 14.07 [July 2014] period 14.06 [June 2014] period 14.05 [May 2014] period 14.04 [April 2014] period 14.03 [March 2014] period 14.02 [ February 2014] period 14.01 [January 2014] period 13.12 [December 2013] period 13.11 [November 2013] period 13.10 [October 2013] period 13.09 [September 2013] period 13.08 [August 2013] period 13.07 [July 2013] period 13.06 [June 2013] period 13.05 [May 2013] period 13.04 [April 2013] period 13.03 [March 2013] period 13.02 [ February 2013] period 13.01 [January 2013] period 12.12 [December 2012] period 12.11 [November 2012] period 12.10 [October 2012] period 12.09 [September 2012] period 12.08 [August 2012] period 12.07 [July 2012] period 12.06 [June 2012] period 12.05 [May 2012] period 12.04 [April 2012] period 12.03 [March 2012] period 12.02 [ February 2012] period 12.01 [January 2012] period 11.12 [December 2011] period 11.11 [November 2011] period 11.10 [October 2011] period 11.09 [September 2011] period 11.08 [August 2011] period 11.07 [July 2011] period 11.06 [June 2011] period 11.05 [May 2011] period 11.04 [April 2011] period 11.03 [March 2011] period 11.02 [ February 2011] period 11.01 [January 2011] period 10.12 [December 2010] period 10.11 [November 2010] period 10.10 [October 2010] period 10.09 [September 2010] period 10.08 [August 2010] period 10.07 [July 2010] period 10.06 [June 2010] period 10.05 [May 2010] period 10.04 [April 2010] period 10.03 [March 2010] period 10.02 [ February 2010] period 10.01 [January 2010] period 09.12 [December 2009] period 09.11 [November 2009] period 09.10 [October 2009] period 09.09 [September 2009] period 09.08 [August 2009] period 09.07 [July 2009] period 09.06 [June 2009] period 09.05 [May 2009] period 09.04 [April 2009] period 09.03 [March 2009] period 09.02 [ February 2009] period 09.01 [January 2009] period 08.12 [December 2008] period 08.11 [November 2008] period 08.10 [October 2008] period 08.09 [September 2008] period 08.08 [August 2008] period 08.07 [July 2008] period 08.06 [June 2008] period 08.05 [May 2008] period 08.04 [April 2008] period 08.03 [March 2008] period 08.02 [ February 2008] period 08.01 [January 2008] period 07.12 [December 2007] period 07.11 [November 2007] period 07.10 [October 2007] period 07.09 [September 2007] period 07.08 [August 2007] period 07.07 [July 2007] period 07.06 [June 2007] period 07.05 [May 2007] period 07.04 [April 2007] period 07.03 [March 2007] period 07.02 [ February 2007] period 07.01 [January 2007] period 06.12 [December 2006] period 06.11 [November 2006] period 06.10 [October 2006] period 06.09 [September 2006] period 06.08 [August 2006] period 06.07 [July 2006] period 06.06 [June 2006] period 06.05 [May 2006] period 06.04 [April 2006] period 06.03 [March 2006] period 06.02 [ February 2006] period 06.01 [January 2006] period 05.12 [December 2005] period 05.11 [November 2005] period 05.10 [October 2005] period 05.09 [September 2005] period 05.08 [August 2005] period 05.07 [July 2005] period 05.06 [June 2005] period 05.05 [May 2005] period 05.04 [April 2005] period 05.03 [March 2005] period 05.02 [ February 2005] period 05.01 [January 2005] period 04.12 [December 2004] period 04.11 [November 2004] period 04.10 [October 2004] period 04.09 [September 2004] period 04.08 [August 2004] period 04.07 [July 2004] period 04.06 [June 2004] period 04.05 [May 2004] period 04.04 [April 2004] period 04.03 [March 2004] period 04.02 [ February 2004] period 04.01 [January 2004] period 03.12 [December 2003] period 03.11 [November 2003] period 03.10 [October 2003] period 03.09 [September 2003] period 03.08 [August 2003] period 03.07 [July 2003] period 03.06 [June 2003] period 03.05 [May 2003] period 03.04 [April 2003] period 03.03 [March 2003] period 03.02 [January 2003] period 03.01 [January 2003] period 02.12 [December 2002] period 02.11 [November 2002] period 02.10 [October 2002] period 02.09 [September 2002] period 02.08 [August 2002] period 02.07 [July 2002] period 02.06 [June 2002] period 02.05 [May 2002] period 02.04 [April 2002] period 02.03 [March 2002] period 02.02 [ February 2002] period 02.01 [January 2002] period 01.12 [December 2001] period 01.11 [November 2001] period 01.10 [October 2001] period 01.09 [September 2001] period 01.08 [August 2001] period 01.07 [July 2001] period 01.06 [June 2001] period 01.05 [May 2001] period 01.04 [April 2001] period 01.03 [March 2001] period 01.02 [ February 2001] period 01.01 [January 2001] period 00.12 [December 2000] period 00.11 [November 2000] period 00.10 [October 2000] period 00.09 [September 2000] period 00.08 [August 2000] period 00.07 [July 2000] period 00.06 [June 2000] period 00.05 [May 2000] period 00.04 [April 2000] period 00.03 [March 2000] period 00.02 [ February 2000] period 00.01 [January 2000] period 99.12 [December 1999] period 99.11 [November 1999] period 99.10 [October 1999] period 99.09 [September 1999] period 99.08 [August 1999] period 99.07 [July 1999] period 99.06 [June 1999] period 99.05 [May 1999] period 99.04 [April 1999] period 99.03 [March 1999] period 99.02 [ February 1999] period 99.01 [January 1999] period 98.12 [December 1998] period 98.11 [November 1998] period 98.10 [October 1998] period 98.09 [September 1998] period 98.08 [August 1998] period 98.07 [July 1998] period 98.06 [June 1998] period 98.05 [May 1998] period 98.04 [April 1998] period 98.03 [March 1998] period 98.02 [ February 1998] period 98.01 [January 1998]

Rates relative to TAI of clocks participating in the computation of TAI

period 20.12 [December 2020] period 20.11 [November 2020] period 20.10 [October 2020] period 20.09 [September 2020] period 20.08 [August 2020] period 20.07 [July 2020] period 20.06 [June 2020] period 20.05 [May 2020] period 20.04 [April 2020] period 20.03 [March 2020] period 20.02 [ February 2020] period 20.01 [January 2020] period 19.12 [December 2019] period 19.11 [November 2019] period 19.10 [October 2019] period 19.09 [September 2019] period 19.08 [August 2019] period 19.07 [July 2019] period 19.06 [June 2019] period 19.05 [May 2019] period 19.04 [April 2019] period 19.03 [March 2019] period 19.02 [ February 2019] period 19.01 [January 2019] period 18.12 [December 2018] period 18.11 [November 2018] period 18.10 [October 2018] period 18.09 [September 2018] period 18.08 [August 2018] period 18.07 [July 2018] period 18.06 [June 2018] period 18.05 [May 2018] period 18.04 [April 2018] period 18.03 [March 2018] period 18.02 [ February 2018] period 18.01 [January 2018] period 17.12 [December 2017] period 17.11 [November 2017] period 17.10 [October 2017] period 17.09 [September 2017] period 17.08 [August 2017] period 17.07 [July 2017] period 17.06 [June 2017] period 17.05 [May 2017] period 17.04 [April 2017] period 17.03 [March 2017] period 17.02 [ February 2017] period 17.01 [January 2017] period 16.12 [December 2016] period 16.11 [November 2016] period 16.10 [October 2016] period 16.09 [September 2016] period 16.08 [August 2016] period 16.07 [July 2016] period 16.06 [June 2016] period 16.05 [May 2016] period 16.04 [April 2016] period 16.03 [March 2016] period 16.02 [ February 2016] period 16.01 [January 2016] period 15.12 [December 2015] period 15.11 [November 2015] period 15.10 [October 2015] period 15.09 [September 2015] period 15.08 [August 2015] period 15.07 [July 2015] period 15.06 [June 2015] period 15.05 [May 2015] period 15.04 [April 2015] period 15.03 [March 2015] period 15.02 [ February 2015] period 15.01 [January 2015] period 14.12 [December 2014] period 14.11 [November 2014] period 14.10 [October 2014] period 14.09 [September 2014] period 14.08 [August 2014] period 14.07 [July 2014] period 14.06 [June 2014] period 14.05 [May 2014] period 14.04 [April 2014] period 14.03 [March 2014] period 14.02 [ February 2014] period 14.01 [January 2014] period 13.12 [December 2013] period 13.11 [November 2013] period 13.10 [October 2013] period 13.09 [September 2013] period 13.08 [August 2013] period 13.07 [July 2013] period 13.06 [June 2013] period 13.05 [May 2013] period 13.04 [April 2013] period 13.03 [March 2013] period 13.02 [ February 2013] period 13.01 [January 2013] period 12.12 [December 2012] period 12.11 [November 2012] period 12.10 [October 2012] period 12.09 [September 2012] period 12.08 [August 2012] period 12.07 [July 2012] period 12.06 [June 2012] period 12.05 [May 2012] period 12.04 [April 2012] period 12.03 [March 2012] period 12.02 [ February 2012] period 12.01 [January 2012] period 11.12 [December 2011] period 11.11 [November 2011] period 11.10 [October 2011] period 11.09 [September 2011] period 11.08 [August 2011] period 11.07 [July 2011] period 11.06 [June 2011] period 11.05 [May 2011] period 11.04 [April 2011] period 11.03 [March 2011] period 11.02 [ February 2011] period 11.01 [January 2011] period 10.12 [December 2010] period 10.11 [November 2010] period 10.10 [October 2010] period 10.09 [September 2010] period 10.08 [August 2010] period 10.07 [July 2010] period 10.06 [June 2010] period 10.05 [May 2010] period 10.04 [April 2010] period 10.03 [March 2010] period 10.02 [ February 2010] period 10.01 [January 2010] period 09.12 [December 2009] period 09.11 [November 2009] period 09.10 [October 2009] period 09.09 [September 2009] period 09.08 [August 2009] period 09.07 [July 2009] period 09.06 [June 2009] period 09.05 [May 2009] period 09.04 [April 2009] period 09.03 [March 2009] period 09.02 [ February 2009] period 09.01 [January 2009] period 08.12 [December 2008] period 08.11 [November 2008] period 08.10 [October 2008] period 08.09 [September 2008] period 08.08 [August 2008] period 08.07 [July 2008] period 08.06 [June 2008] period 08.05 [May 2008] period 08.04 [April 2008] period 08.03 [March 2008] period 08.02 [ February 2008] period 08.01 [January 2008] period 07.12 [December 2007] period 07.11 [November 2007] period 07.10 [October 2007] period 07.09 [September 2007] period 07.08 [August 2007] period 07.07 [July 2007] period 07.06 [June 2007] period 07.05 [May 2007] period 07.04 [April 2007] period 07.03 [March 2007] period 07.02 [ February 2007] period 07.01 [January 2007] period 06.12 [December 2006] period 06.11 [November 2006] period 06.10 [October 2006] period 06.09 [September 2006] period 06.08 [August 2006] period 06.07 [July 2006] period 06.06 [June 2006] period 06.05 [May 2006] period 06.04 [April 2006] period 06.03 [March 2006] period 06.02 [ February 2006] period 06.01 [January 2006] period 05.12 [December 2005] period 05.11 [November 2005] period 05.10 [October 2005] period 05.09 [September 2005] period 05.08 [August 2005] period 05.07 [July 2005] period 05.06 [June 2005] period 05.05 [May 2005] period 05.04 [April 2005] period 05.03 [March 2005] period 05.02 [ February 2005] period 05.01 [January 2005] period 04.12 [December 2004] period 04.11 [November 2004] period 04.10 [October 2004] period 04.09 [September 2004] period 04.08 [August 2004] period 04.07 [July 2004] period 04.06 [June 2004] period 04.05 [May 2004] period 04.04 [April 2004] period 04.03 [March 2004] period 04.02 [ February 2004] period 04.01 [January 2004] period 03.12 [December 2003] period 03.11 [November 2003] period 03.10 [October 2003] period 03.09 [September 2003] period 03.08 [August 2003] period 03.07 [July 2003] period 03.06 [June 2003] period 03.05 [May 2003] period 03.04 [April 2003] period 03.03 [March 2003] period 03.02 [ February 2003] period 03.01 [January 2003] period 02.12 [December 2002] period 02.11 [November 2002] period 02.10 [October 2002] period 02.09 [September 2002] period 02.08 [August 2002] period 02.07 [July 2002] period 02.06 [June 2002] period 02.05 [May 2002] period 02.04 [April 2002] period 02.03 [March 2002] period 02.02 [ February 2002] period 02.01 [January 2002] period 01.12 [December 2001] period 01.11 [November 2001] period 01.10 [October 2001] period 01.09 [September 2001] period 01.08 [August 2001] period 01.07 [July 2001] period 01.06 [June 2001] period 01.05 [May 2001] period 01.04 [April 2001] period 01.03 [March 2001] period 01.02 [ February 2001] period 01.01 [January 2001] period 00.12 [December 2000] period 00.11 [November 2000] period 00.10 [October 2000] period 00.09 [September 2000] period 00.08 [August 2000] period 00.07 [July 2000] period 00.06 [June 2000] period 00.05 [May 2000] period 00.04 [April 2000] period 00.03 [March 2000] period 00.02 [ February 2000] period 99.12 [December 1999] period 99.11 [November 1999] period 99.10 [October 1999] period 99.09 [September 1999] period 99.08 [August 1999] period 99.07 [July 1999] period 99.06 [June 1999] period 99.05 [May 1999] period 99.04 [April 1999] period 99.03 [March 1999] period 99.02 [ February 1999] period 99.01 [January 1999] period 98.12 [December 1998] period 98.11 [November 1998] period 98.10 [October 1998] period 98.09 [September 1998] period 98.08 [August 1998] period 98.07 [July 1998] period 98.06 [June 1998] period 98.05 [May 1998] period 98.04 [April 1998] period 98.03 [March 1998] period 98.02 [ February 1998] period 98.01 [January 1998]

Frequency drifts of clocks participating in the computation of TAI

period 20.12 [December 2020] period 20.11 [November 2020] period 20.10 [October 2020] period 20.09 [September 2020] period 20.08 [August 2020] period 20.07 [July 2020] period 20.06 [June 2020] period 20.05 [May 2020] period 20.04 [April 2020] period 20.03 [March 2020] period 20.02 [ February 2020] period 20.01 [January 2020] period 19.12 [December 2019] period 19.11 [November 2019] period 19.10 [October 2019] period 19.09 [September 2019] period 19.08 [August 2019] period 19.07 [July 2019] period 19.06 [June 2019] period 19.05 [May 2019] period 19.04 [April 2019] period 19.03 [March 2019] period 19.02 [ February 2019] period 19.01 [January 2019] period 18.12 [December 2018] period 18.11 [November 2018] period 18.10 [October 2018] period 18.09 [September 2018] period 18.08 [August 2018] period 18.07 [July 2018] period 18.06 [June 2018] period 18.05 [May 2018] period 18.04 [April 2018] period 18.03 [March 2018] period 18.02 [ February 2018] period 18.01 [January 2018] period 17.12 [December 2017] period 17.11 [November 2017] period 17.10 [October 2017] period 17.09 [September 2017] period 17.08 [August 2017] period 17.07 [July 2017] period 17.06 [June 2017] period 17.05 [May 2017] period 17.04 [April 2017] period 17.03 [March 2017] period 17.02 [ February 2017] period 17.01 [January 2017] period 16.12 [December 2016] period 16.11 [November 2016] period 16.10 [October 2016] period 16.09 [September 2016] period 16.08 [August 2016] period 16.07 [July 2016] period 16.06 [June 2016] period 16.05 [May 2016] period 16.04 [April 2016] period 16.03 [March 2016] period 16.02 [ February 2016] period 16.01 [2016] period 15.12 [December 2015] period 15.11 [November 2015] period 15.10 [October 2015] period 15.09 [September 2015] period 15.08 [August 2015] period 15.07 [July 2015] period 15.06 [June 2015] period 15.05 [May 2015] period 15.04 [April 2015] period 15.03 [March 2015] period 15.02 [ February 2015] period 15.01 [January 2015] period 14.12 [December 2014] period 14.11 [November 2014] period 14.10 [October 2014] period 14.09 [September 2014] period 14.08 [August 2014] period 14.07 [July 2014] period 14.06 [June 2014] period 14.05 [May 2014] period 14.04 [April 2014] period 14.03 [March 2014] period 14.02 [ February 2014] period 14.01 [January 2014] period 13.12 [December 2013] period 13.11 [November 2013] period 13.10 [October 2013] period 13.09 [September 2013] period 13.08 [August 2013] period 13.07 [July 2013] period 13.06 [June 2013] period 13.05 [May 2013] period 13.04 [April 2013] period 13.03 [March 2013] period 13.02 [ February 2013] period 12.12 [December 2012] period 12.11 [November 2012] period 12.10 [October 2012] period 12.09 [September 2012] period 12.08 [August 2012] period 12.07 [July 2012] period 12.06 [June 2012] period 12.05 [May 2012] period 12.04 [April 2012] period 12.03 [March 2012] period 12.02 [ February 2012] period 12.01 [January 2012] period 14.10 [October 2010]

Fractional frequency of EAL from primary frequency standards

EAL 20.12 [December 2020] EAL 20.11 [November 2020] EAL 20.10 [October 2020] EAL 20.09 [September 2020] EAL 20.08 [August 2020] EAL 20.07 [July 2020] EAL 20.06 [June 2020] EAL 20.05 [May 2020] EAL 20.04 [April 2020] EAL 20.03 [March 2020] EAL 20.02 [ February 2020] EAL 20.01 [January 2020] EAL 19.12 [December 2019] EAL 19.11 [November 2019] EAL 19.10 [October 2019] EAL 19.09 [September 2019] EAL 19.08 [August 2019] EAL 19.07 [July 2019] EAL 19.06 [June 2019] EAL 19.05 [May 2019] EAL 19.04 [April 2019] EAL 19.03 [March 2019] EAL 19.02 [ February 2019] EAL 19.01 [January 2019] EAL 18.12 [December 2018] EAL 18.11 [November 2018] EAL 18.10 [October 2018] EAL 18.09 [September 2018] EAL 18.08 [August 2018] EAL 18.07 [July 2018] EAL 18.06 [June 2018] EAL 18.05 [May 2018] EAL 18.04 [April 2018] EAL 18.03 [March 2018] EAL 18.02 [ February 2018] EAL 18.01 [January 2018] EAL 17.12 [December 2017] EAL 17.11 [November 2017] EAL 17.10 [October 2017] EAL 17.09 [September 2017] EAL 17.08 [August 2017] EAL 17.07 [July 2017] EAL 17.06 [June 2017] EAL 17.05 [May 2017] EAL 17.04 [April 2017] EAL 17.03 [March 2017] EAL 17.02 [ February 2017] EAL 17.01 [January 2017] EAL 16.12 [December 2016] EAL 16.11 [November 2016] EAL 16.10 [October 2016] EAL 16.09 [September 2016] EAL 16.08 [August 2016] EAL 16.07 [July 2016] EAL 16.06 [June 2016] EAL 16.05 [May 2016] EAL 16.04 [April 2016] EAL 16.03 [March 2016] EAL 16.02 [ February 2016] EAL 16.01 [January 2016] EAL 15.12 [November 2015] EAL 15.11 [November 2015] EAL 15.10 [October 2015] EAL 15.09 [September 2015] EAL 15.08 [August 2015] EAL 15.07 [July 2015] EAL 15.06 [June 2015] EAL 15.05 [May 2015] EAL 15.04 [April 2015] EAL 15.03 [March 2015] EAL 15.02 [ February 2015] EAL 15.01 [January 2015] EAL 14.12 [December 2014] EAL 14.11 [November 2014] EAL 14.10 [October 2014] EAL 14.09 [September 2014] EAL 14.08 [August 2014] EAL 14.07 [July 2014] EAL 14.06 [June 2014] EAL 14.05 [May 2014] EAL 14.04 [April 2014] EAL 14.03 [March 2014] EAL 14.02 [ February 2014] EAL 14.01 [January 2014] EAL 13.12 [December 2013] EAL 13.11 [November 2013] EAL 13.10 [October 2013] EAL 13.09 [September 2013] EAL 13.08 [August 2013] EAL 13.07 [July 2013] EAL 13.06 [June 2013] EAL 13.05 [May 2013] EAL 13.04 [April 2013] EAL 13.03 [March 2013] EAL 13.02 [ February 2013] EAL 13.01 [January 2013] EAL 12.12 [December 2012] EAL 12.11 [November 2012] EAL 12.10 [October 2012] EAL 12.09 [September 2012] EAL 12.08 [August 2012] EAL 12.07 [July 2012] EAL 12.06 [June 2012] EAL 12.05 [May 2012] EAL 12.04 [April 2012] EAL 12.03 [March 2012] EAL 12.02 [ February 2012] EAL 12.01 [January 2012] EAL 11.12 [December 2011] EAL 11.11 [November 2011] EAL 11.10 [October 2011] EAL 11.09 [September 2011] EAL 11.08 [August 2011] EAL 11.07 [July 2011] EAL 11.06 [June 2011] EAL 11.05 [May 2011] EAL 11.04 [April 2011] EAL 11.03 [March 2011] EAL 11.02 [ February 2011] EAL 11.01 [January 2011] EAL 10.12 [December 2010] EAL 10.11 [November 2010] EAL 10.10 [October 2010] EAL 10.09 [September 2010] EAL 10.08 [August 2010] EAL 10.07 [July 2010] EAL 10.06 [June 2010] EAL 10.05 [May 2010] EAL 10.04 [April 2010] EAL 10.03 [March 2010] EAL 10.02 [ February 2010] EAL 10.01 [January 2010] EAL 09.12 [December 2009] EAL 09.11 [November 2009] EAL 09.10 [October 2009] EAL 09.09 [September 2009] EAL 09.08 [August 2009] EAL 09.07 [July 2009] EAL 09.06 [June 2009] EAL 09.05 [May 2009] EAL 09.04 [April 2009] EAL 09.03 [March 2009] EAL 09.02 [ February 2009] EAL 09.01 [January 2009] EAL 08.12 [December 2008] EAL 08.11 [November 2008] EAL 08.10 [October 2008] EAL 08.09 [September 2008] EAL 08.08 [August 2008] EAL 08.07 [July 2008] EAL 08.06 [June 2008] EAL 08.05 [May 2008] EAL 08.04 [April 2008] EAL 08.03 [March 2008] EAL 08.02 [ February 2008] EAL 08.01 [January 2008] EAL 07.12 [December 2007] EAL 07.11 [November 2007] EAL 07.10 [October 2007] EAL 07.09 [September 2007] EAL 07.08 [August 2007] EAL 07.08 [August 2007] EAL 07.07 [July 2007] EAL 07.06 [June 2007] EAL 07.05 [May 2007] EAL 07.04 [April 2007] EAL 07.03 [March 2007] EAL 07.02 [ February 2007] EAL 07.01 [January 2007] EAL 06.12 [December 2006] EAL 06.11 [November 2006] EAL 06.10 [October 2006] EAL 06.09 [September 2006] EAL 06.08 [August 2006] EAL 06.07 [July 2006] EAL 06.06 [June 2006] EAL 06.05 [May 2006] EAL 06.04 [April 2006] EAL 06.03 [March 2006] EAL 06.02 [ February 2006] EAL 06.01 [January 2006] EAL 05.12 [December 2005] EAL 05.11 [November 2005] EAL 05.10 [October 2005] EAL 05.09 [September 2005] EAL 05.08 [August 2005] EAL 05.07 [July 2005] EAL 05.06 [June 2005] EAL 05.05 [May 2005] EAL 05.04 [April 2005] EAL 05.03 [March 2005] EAL 05.02 [ February 2005] EAL 05.01 [January 2005] EAL 04.12 [December 2004] EAL 04.11 [November 2004] EAL 04.10 [October 2004] EAL 04.09 [September 2004] EAL 04.08 [August 2004] EAL 04.07 [July 2004] EAL 04.06 [June 2004] EAL 04.05 [May 2004] EAL 04.04 [April 2004] EAL 04.03 [March 2004] EAL 04.02 [ February 2004] EAL 04.01 [January 2004] EAL 03.12 [December 2003] EAL 03.11 [November 2003] EAL 03.10 [October 2003] EAL 03.09 [September 2003] EAL 03.08 [August 2003] EAL 03.07 [July 2003] EAL 03.06 [June 2003] EAL 03.05 [May 2003] EAL 03.04 [April 2003] EAL 03.03 [March 2003] EAL 03.02 [ February 2003] EAL 03.01 [January 2003] EAL 02.12 [December 2002] EAL 02.11 [November 2002] EAL 02.10 [October 2002] EAL 02.09 [September 2002] EAL 02.08 [August 2002] EAL 02.07 [July 2002] EAL 02.06 [June 2002] EAL 02.05 [May 2002] EAL 02.04 [April 2002] EAL 02.03 [March 2002] EAL 02.02 [ February 2002] EAL 02.01 [January 2002] EAL 01.12 [December 2001] EAL 01.11 [November 2001] EAL 01.10 [October 2001] EAL 01.09 [September 2001] EAL 01.08 [August 2001] EAL 01.07 [July 2001] EAL 01.06 [June 2001] EAL 01.05 [May 2001] EAL 01.04 [April 2001] EAL 01.03 [March 2001] EAL 01.02 [ February 2001] EAL 01.01 [January 2001] EAL 00.12 [December 2000] EAL 00.11 [November 2000] EAL 00.10 [October 2000] EAL 00.09 [September 2000] EAL 00.08 [August 2000] EAL 00.07 [July 2000] EAL 00.06 [June 2000] EAL 00.05 [May 2000] EAL 00.04 [April 2000] EAL 96 [1996]

Difference between the normalized frequencies of EAL and TAI

Difference between PSFS ensemble frequency and TAI frequency (d)

Difference between PSFS frequency and TAI frequency (d)

it_yb1-ftai nist_yb1-ftai syrte_fom-ftai nict_sr1-ftai metas_foc2-ftai it_csf2-ftai nim5-ftai nist_f1-ftai nist_f2-ftai npl_csf2-ftai npli_csf1-ftai ptb_cs1-ftai ptb_cs2-ftai ptb_csf1-ftai ptb_csf2-ftai su_csfo2-ftai syrte_fo1-ftai syrte_fo2-ftai syrte_forb-ftai nmij_yb1-ftai syrte_sr2-ftai syrte_srb-ftai

Measurements of the duration of the TAI scale interval

UTAI 2019 UTAI 2018 UTAI 2017 UTAI 2016 UTAI 2015 UTAI 2014 UTAI 2013 UTAI 2012 UTAI 2011 UTAI 2010 UTAI 2009 UTAI 2008 UTAI 2007 UTAI 2006 UTAI 2005 UTAI 2004 UTAI 2003 UTAI 2002 UTAI 1999 UTAI 1998 UTAI 1997 UTAI 1996 UTAI 1995

Mean fractional deviation of the TAI scale interval from that of TT

SITAI 2019 SITAI 2018 SITAI 2017 SITAI 2016 SITAI 2015 SITAI 2014 SITAI 2013 SITAI 2012 SITAI 2011 SITAI 2010 SITAI 2009 SITAI 2008 SITAI 2007 SITAI 2006 SITAI 2005 SITAI 2004 SITAI 2003 SITAI 2002 SITAI 2000 SITAI 1999 SITAI 1998 SITAI 1997 SITAI 1996 SITAI 1995 SITAI 1994 SITAI 1993

Older files can be accessed directly from the FTP site (62.161.69.5 or ftp2.bipm.org).