Datetimes and time zones are tricky enough in software. But adding daylight savings on top is just pure evil. The one good thing the UN could do is agree to a worldwide standard of making every area of the globe have a fixed offset from UTC that never changes. Would make the advancement of bug free tech easier.
The World DOESN’T NEED the (U)seless (N)annys to exist to begin with.
Those of Us that have clocks and understand time could solve this problem.
The “turd world” knows Day and Night and could care less about Time Zones and Clocks. Heck they drink muddy water full of animal feces every day without even filtering out the big chunks with a t-shirt and boiling it which would reduce the death rate by probably 50-75%. What makes You think they care about Time Details ?