In May, the House Energy and Commerce Committee voted 48-1 in favor of the Sunshine Protection Act. The U.S. Senate voted unanimously in March 2022 to make daylight saving time permanent but the House never took up the measure in the face of opposition. The proposal the House will consider next week would allow states to opt out.
You wouldn’t necessarily have to have GPS in every clock. You could have all the clocks forming an “asynchronous mesh” network. They would all constantly ping each other on a standard frequency and estimate their location using triangulation. That, in combination with scanning for other things like phones, WiFi APs, BLE devices etc, could probably get you surprisingly accurate location data with a big enough network.