– the intergovernmental organization through which Member States act together
     on matters related to measurement science and measurement standards.
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FTP server of the BIPM Time Department

The complete set of publications and time-data files can be accessed via anonymous ftp (ftp or ftp2.bipm.org).

The files are organized in the following four subdirectories:

    data – all data used for the computation of TAI;

    publication – the latest issues of the BIPM's publications on time scales (including Circular T);

    scale – time scales data;

    links – results of link comparisons.

Other international metrology data centres:

International metrology publications
SI Brochure
Guides in metrology
Circular T
IERS Conventions Center
Recommended values of standard frequencies
Related articles
International reference timescales
Recent publications of the BIPM Time Department