I am not aware of atomic clock that has a gps in it along with the software to be able to detect its location. A cellular phone picks up its signal from a cell tower that carries the time. If you notice, many times, you may travel miles after a time zone change before the phone changes time when the signal switches to a cell tower in the new time zone. Other times it happens fairly quickly. I doubt that there is enough demand to cause a manufacturer to install a gps and the computing power to search for the current coordinates and locate the time zone automatically or to install a cellular receiver that would allow it to pick up the time information off of the nearest cell tower. If would be a nice feature.
|