Think about when the last time you used a wall clock or even a public clock pole/tower or something. My brain doesn’t even register them anymore, I just look at my phone and reset brain to whatever magic hand box says.
To think there used to be a time where you had to physically go outside and look at a clock tower if you wanted accurate ish local time
edit: hourly workers who live by the time card, disregard this post
Maybe reread my comment? The Gshock watch sets itself daily to the atomic clock via radio broadcast. I use that watch as my reference to set the others when they’re a little off.
Edit: here’s the link from Casio explaining the technology https://gshock.casio.com/intl/technology/radio/
They use that guy’s phone to set the atomic clock though, checkmate atheist