The issue of daylight savings has largely been solved by shifting clocks a minute every day for sixty days. The obvious problem is that we didn't build our electronics based on the concept of variable lengths in the days. However, we could mandate that all new electronics either have a built-in calendar, have NTP capability, use celluar towers for synchronization, or not have a clock at all and at the end of a decade or two we could switch to a much healthier approach. However, it will never happen because of businesses like trains, airlines, financial markets, and international logistics rely on a synchronized timeline which means it would need to more than just a single nation that uses this scheme but the whole world.
TL;DR: it's just not lethal enough of a problem to get solved, especially when the money changers get involved.