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We occasionally develop mobile apps that support the research, services and outreach carried out at NPL.

NPL Time

We have created a time app using the time from the atomic clocks, based at our labs in Teddington. 

Why not check the accuracy of your phone's clock against the UK's official time?

  • Watch your phone form a connection to the clocks that set the UK's official time
  • Check the difference between your device's clock and the official time in the UK
  • Learn how atomic clocks and internet time transfer work
  • Try finding an atomic resonance yourself: the basis of an atomic clock

Download from App Store

Email app support