Time Broadcasting over TV/Radio links

demetra Time Broadcasting over TV/Radio links

Disseminate your time via Radio and TV at millisecond level, everywhere in your country and in Europe.


This service allows the dissemination of time, by adopting the Radio and TV signals, conceiving analog and digital modulations.

Features and benefits:
Already existing infrastructure usage.
Wide areas coverage (national and international level).
Millisecond accuracy performance.
Ready for current/future market devices and solutions.

How it works

A specifically designed code, carrying on time information, expressed in terms of Year, Month, Day, Hour, Minutes, seconds, plus additional information like the introduction of the winter/summer time, modulates Radio and TV analogic signals, as well as is carried on by the digital audio and video broadcasting systems (i.e. DAB and DVB, respectively). This is an “open service”, achievable everywhere (*). Interested users, can chose among two different user terminals, depending on their needs. A standard one, small, portable and cheap, for basic applications, or “special” user terminal for professional use, with included monitoring features allowing to be always informed about the proper function of the required service.

(*) where Radio and TV signal are available.

Time Service Details

Version: 1.0

Company: INRIM - Istituto Nazionale di Ricerca Metrologica

Address: Strada delle Cacce, 91 - 10135 Torino - Italy

Contact with the company: email us

Website: rime.inrim.it/H2020-Demetra/



This project has received funding from the European Union’s Horizon 2020 research and innovation programme under grant agreement No 640658. The Commission is not responsible for any use that may be made of the information this web contains.


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Our Office

Strada delle Cacce, 91,
10135 Torino, Italy.
e-mail: info@demetratime.eu