we've only had DST 25 years now and it's just one huge nuissance. It was introduced in order to save electricity but it's utter b-shit. The light you save in the evening is needed in the morning instead. And all this clock-switching, trains having to wait 1 hour to be back on time again etc costs actually more money than it saves.
Add to it the physical problems the time shift causes everyone.
I totally fail to see any advantages of DST. And since in this globalized world we have to deal with different time zones anyway, there's absolutely no reason why we should stick to the nonsense of the sun not
being in the zenith at 12 o'clock for almost 8 months a year.