It'd be cool if there was a drop-in replacement for the standard cheapo clock module that allowed you to add this for existing clocks. Edit: It exists! https:/

It'd be cool if there was a drop-in replacement for the standard cheapo clock module that allowed you to add this for existing clocks. Edit: It exists! https://www.walmart.com/ip/Atomic-Radio-Controlled-Clock-Movement-Kit-Silent-Quartz-DCF-Signal-Mechanism-DIY-Repair-Replacement-Parts-with-Hands/17569062467 https://www.walmart.com/ip/Atomic-Radio-Controlled-Clock-Mov... Might be doing some retrofitting soon!