happyjuggler0: Actually, in 1990s there was a year in Portugal when we didn't change the hour in one of the clock changes, to have the same hour as the rest of the Europe if I0m not mistaken (maybe Roberto remembers it better than me), I think it caused several problems like everyone going to work still with dark night.and in the Summer we had daylight until almost 10pm (when the "normal" is a sunset at 9pm or 9.15pm. Whatever was the case, it was a single year, so... we had that "study" and it didn't work...