3 ms·
In the US you can get clocks that auto-set by tuning into the NIST radio signal WWVB. They come in both digital and analog, with various designs. They don’t nee
by orev 6y ago
In the US you can get clocks that auto-set by tuning into the NIST radio signal WWVB. They come in both digital and analog, with various designs. They don’t need Internet; just some regular batteries.
- rootw0rm 6y agohell, my wrist watch does that, and it's solar powered. thanks, Citizen.