As the UK's home of precise time and frequency measurement, NPL offers a range of services that provide access to a reliable and trusted source of time: the Time from NPL.
The MSF radio time signal covers the whole of the UK and is widely used to set radio-controlled clocks to the correct time. Computers can synchronise their internal clocks to the correct time by using NPL's two computer time services, based on either dial-up or internet connection to time servers located at NPL.
Companies that need to know the precise frequency of off-air signals or use the signals to obtain traceability back to UTC can make use of the NPL monthly Time & Frequency Bulletins. For those users that require the highest accuracy, NPL offers a GPS Common-View Time and Frequency Transfer Service that provides its customers with greater accuracy and data integrity than other commercially available time and frequency traceability routes.
Time products and services
- NPL operates a time and frequency transfer service that provides its customers with greater accuracy and data integrity than other commercially available time and frequency traceability routes.
- The NPL Monthly Bulletins for time & frequency cover the three standard-frequency and time radio signals that are most widely used in the UK: the MSF 60 kHz standard-frequency and time signal, the 198 kHz long-wave transmission from Droitwich radio station and the GPS navigation satellite signals.
Changes to the Telephone Time Service (TTS)
From 16 August 2015, the previous method of accessing NPL TTS using a UK premium-rate telephone number, 0906 851 6333, has been replaced by a direct-dial number, 020 8943 6333. Calls to the service are now charged at the standard network rate, and there are no additional costs for using the service.
Please note that the information will not be divulged to third parties, or used without your permission