Over 2,500,000 downloads so far of the awesome Big Ben Time Server, designed for Microsoft Windows XP,7 or 10.Civil,Military,Land, Air & Sea. The Big Ben Time Server is used worldwide, by individuals and companies. We recently installed the Big Ben Time Server at Humbly Grove Energy, in Hampshire, England.They are solely owned by PETRONAS (Petroliam Nasional Berhad) is Malaysia's fully integrated oil and gas multinational ranked among the largest corporations on FORTUNE Global 500®

Long-wave radio signals carrying comprehensive information on the time and date are broadcast across Europe and North America. These signals can be received within a radius of about 1,500km from the transmitter. Galleon Systems offer a range of products to receive and decode these atomic clock time signals for use in hobby or OEM projects.

The NPL MSF Time Signal Decoder Clock is PC time synchronization software that synchronizes Windows computers to the time received from a DIY built MSF kit or Galleon MSF receiver.

It’s getting more difficult to find a PC with a native RS-232 serial communication port, most PC's or laptops nowadaysinterface using a USB.

The NPL MSF Time Signal Decoder Clock will use transmitted date and time data received from the MSF receiver.


  • Supports Windows 7, 8, 8.1 and Windows 10