BIPM Time Dept database
BIPM Time Department Data Base

In this web site, information can be found on equipment in UTC contributing laboratories
To obtain these information, go to tabs :

Participation guidelines

Full documentation and guidelines for UTC and UTCr participation


Laboratories info : full list of participating labs and their related information
UTC/UTCr Contributors : contributing laboratories to UTC and UTCr

Lab. equipment

GNSS : list of all GNSS equipments in UTC participating laboratories and their calibration status
TWSTFT : list of all TWSTFT equipments in UTC participating laboratories and their calibration status


Clock stats & codes : list of all clocks contributing to UTC
Obtain BIPM clock code : Tool to generate the BIPM clock code of a clock (necessary to start reporting the clock for TAI)
by laboratory : list of clocks from a given lab


GNSS status : list of GNSS calibration exercices (past and future)
GNSS results : results of GNSS calibration exercices
TWSTFT status : list of TWSTFT calibration exercices

Interactive plots

UTC-UTC(k) : Interactive plot of UTC(k) wrt UTC/UTCr
UTC-GNSS times : Interactive plot GNSS times wrt UTC

Web services Application programming interfaces developed for the BIPM digitalisation project
   >>> LATEST NEWS <<<

one-year full-time secondment
Here the announcement.

Deadline for application is Sep 30, 2023.

Access FTP results

Time transfer calibrations

Timescales API [testing only]

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