Comment Re:Think of the school children (Score 1) 105
Some reasons the twice yearly time change is nice.
An extra hour of light in the evening in the summer when evening outdoor activities happen. It would mostly be wasted in the morning unless other schedules (work/school) change with the seasons.
That extra hour of light in the winter is more useful in the morning to make most commutes to work/school after sunrise.
So what the time changes do is keep sunrise more consistent throughout the year ... i.e. between 6 am and 7 am instead of 7 am and 5 am for Standard time or 8 am and 6 am for all DST time.
Of course, I have never had a problem with changes in sleep schedule, so I almost never even notice the time change now that most clocks change times automatically.