Which is why everyone wants it to change so we are always on DST. Basically it amounts to noone likes to "fall back" and have the sunlight become much shorter in the autumn (which admittedly has been shifted to be so late that it's not as bad as it used to be).
Looking at the clock change from the perspective of a systems administrator, it's just an extremely bad idea to tamper with critical devices - clocks - twice a year for such a frivolous reason. One basic axiom is that on critical systems you don't change anything unless absolutely necessary.
As someone above pointed out when the "critical systems" consisted of oil lamps or the time a farmer got up to work, or a stayed open to make money, it wasn't a big deal. But now it really is.
Not only that, but how many time keeping devices did people have back in the days of oil lamps? One if any?
Now, twice a year, I have to change no less than 8-9 timekeeping devices. I have a talking alarm by my bed, a timer/alarm in my kitchen, the clock in my car, and multple wristwatches which all must be changed. This is a massive pain in the ass and there's no way in hell any sane person or government would introduce such a law today. None.
Yet it is indicative of how incompetent government is that it is incapable of eliminating this ridiculous throwback to the horse-and-buggy era in a time when we have 747's and mobile phones.