Well, in reality it does create an extra hour of daylight. Like now where I live the sun sets at around 19:00 while without DST it would set at 18:00. I don't care that it rises at 7 while without dst it would rise at 6 because most of the society does not function on sun hour but on standard time (whatever that is), so shops open at fixed time not on sunrise, schools start as well on fixed time, and lots and lots of other services are bound to the fixed time instead of on solar time. Thus accepting the reality that the whole life is dictated by some artificial standard time, and not by sunrise and sunset, DST does magically create an extra hour of daylight (if the place you are living in has substantial seasonal difference in daylight duration).