National Physical Laboratory

Time & Frequency NPLTime ®

A resilient, traceable and certified time distribution service for the financial sector that completely eliminates reliance on GPS.

NPLTime ® offers the financial sector a certified precise time signal, directly traceable to Coordinated Universal Time (UTC) and independent of GPS. The core implementation and additional metrics provide the user with underpinning timing capability for traceable timestamping, latency monitoring and synchronisation. The signal is fully compliant with the FINRA OATS 7430 timing traceability requirement.

Contact NPLTime ® for more information

The resilient service completely eliminates reliance on GPS and removes susceptibility to jamming, spoofing, urban canyon effects and solar storms. It reduces the costs associated with managing a complex assortment of timing devices and the need to access roof space to locate GPS antennas.

As the home of the UK's National Timescale, UTC(NPL), and the caesium fountain, NPL CsF2 - a primary frequency standard accurate to within one second in 158 million years - NPL is perfectly placed to deliver precision timing services to demanding customers.

Key benefits of NPLTime ®

  • Precision timing distribution solution
  • No reliance on GPS or internet time
  • Directly traceable and certified to UTC at the point of provision, not the source
  • Eliminates susceptibility to GPS jamming, spoofing, urban canyon effects and solar storms
  • Uses dedicated fibre optic links, ensuring maximum resilience and security
  • Provides enhanced synchronisation
  • No roof access required
  • Built-in redundancy

For further details, please download the NPLTime ® brochure


White paper: NPLTime ® - certified time for the financial sector

With MiFID II due to be in place within two years, NPL and ICE have carried out a proof-of-concept to assess the NPLTime ® service for its suitability for the impending regulations.

Precision timekeeping underpins the modern world. Applications from telecommunications to satellite navigation, surveying and transport systems are underpinned by precise timing, and to enable these systems to operate correctly the same stable and accurate reference time scale must be in use everywhere.

There is no single master clock for the world - the consequences of it failing would be far too severe. Instead, the international time reference is maintained by 70 time laboratories around the world and is based on the average of some 400 atomic clocks. That diversity provides both resilience (the loss of a single clock or even a national time laboratory would have little effect) and accessibility (each major industrial nation contributes to the timescale, and hence has direct access to atomic time).

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NPL's Leon Lobo presents an introduction to NPLTime ®


Leon Lobo discusses NPLTime ® with online magazine HFT Review


Please direct all enquiries to:

Leon Lobo
Strategic Business Development
Time & Frequency


Please note that the information will not be divulged to third parties, or used without your permission