Many clocks want setting

There are two times showing in this picture.  One needs setting after the battery got flat, the other seems to have figured it out.  They are part of the same car dashboard.

One says 18:22, the other 8:27.  The photo was taken at 8:27.

Another car, a toyota iq, has a clock that's always wrong.  You can set it, but it goes wrong again.  This one will have to be taped over, because a clock that's off by 45 minutes is much worse than no clock.

Every time the power goes out, the oven clock needs setting.  It flashes, disturbing visual peace, until you do something.

Laptops don't seem to have figured out easily moving between timezones.  Doesn't have to be automatic, just easy enough.

The air is full of the time, from GPS to special clock-setting shortwave signals to timestamps on whatever packets inside wifi frames, and so on.  It would be nice if someone made a little module that listened to such things, and output its best guess about the current time.  Optionally battery-backed.  But periodically saving, to non-volatile memory, the current time, could prevent any jumps backwards from being too big.