Pulsar clock

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Gdańsk, pulsar clock display.

A pulsar clock is a clock which depends on counting radio pulses emitted by pulsars.

Pulsar clock in Gdańsk[edit]

The first pulsar clock in the world was installed in St Catherine's Church, Gdańsk, Poland, in 2011.[1] It was the first clock to count the time using a signal source outside the Earth, other than sun dials. The pulsar clock consists of a radiotelescope with 16 antennas, which receive signals from six designated pulsars. Digital processing of the pulsar signals is done by an FPGA device.[2]

Pulsar clock in Brussels[edit]

On October 5, 2011, a display showing the exact time of the pulsar clock was installed in the European Parliament in Brussels, Belgium.[3]


  1. ^ "World's most accurate clock to be built in Gdańsk". Polska Agencja Prasowa. 2010. Retrieved 2012-03-20.[dead link]
  2. ^ "Gdański Zegar Pulsarowy". Muzeum Zegarow Wiezowych. 2011. Archived from the original on December 13, 2011. Retrieved 2012-03-20.
  3. ^ "Gdański Zegar Pulsarowy w Parlamencie Europejskim". Gdanski Park Naukowo Technologiczny. 2011. Archived from the original on 2013-06-21. Retrieved 2012-03-20.