Jumbo LCD Radio Controlled Wall Clock with Temperature and Humidity display YC8055

Automatic time change for Spring & Autumn and automatic time checks, accurate to 1 second in 10 million years, have automatic set up for time and calendar (where applicable), The National Physical Laboratory (NPL) which is the UK's home of measurement and the nation's timekeeping. NPL is responsible for operating the national time system and making accurate time available across the UK. This clock keep accurate time by picking up the NPL's radio signal, called MSF, which is transmitted on 60KHz from Cumbria. This transmission carries a date and time code that the radio controlled products use to set themselves to the correct time. The signal is controlled by atomic clocks at the radio station and are adjusted to keep in step with the national time maintained at NPL laboratory in London.