BIPM - Time Department FTP server

Contents

Data

Circular T

UTCr

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.

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

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

Frequency drifts of clocks participating in the computation of TAI

Fractional frequency of EAL from primary frequency standards

Difference between the normalized frequencies of EAL and TAI

Difference between PSFS ensemble frequency and TAI frequency (d)

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