How radio-controlled clocks work
A radio-controlled clock receives a time signal and sets itself, including the clock changes.
The time signal
The signal is broadcast and the clock picks it up.
Reception
Reception works best near a window.
Placement
Keep away from metal, TVs and routers.
Tip
Leave it overnight to sync.
If it does not set
Weak signal is the usual cause.
Fixes
Move the clock and wait.
Manual set
Most clocks can also be set by hand.
Tip
Check the batteries first.
Frequently asked questions
How often does it sync?
Usually once a day, at night.
Does it need batteries?
Yes. Check the product.
Is it accurate?
Yes, it follows the broadcast signal.
Shop the range
Browse our Radio-Controlled & Digital Clocks or all products. Code WELCOME10 gives 10% off.



