The computer and electronics industry are about to embark on another Y2K adventure, though not as severe. Presumably everything will still work, but just be off by an hour. Many things, like Windoze computers will be updated by an operating system patch, but lots of things with standalone hard coding (like wristwatches) will need manual intervention twice a year just like the old days - but isn't that why you bought the fancy new calendar-watch with autoset? Also, any sort of automated time-of-day business metering will need to be reprogrammed.
But the truly ugly part of the whole shenanigan is that I sincerely doubt that any measurable energy will be saved. Somebody please tell me how fooling me into thinking it is 8 am rather than 7 am is going change how much energy my stove needs to cook breakfast or how much gas I need to drive to work whether in the daylight or darkness. WalMart is open all night, so it really doesn't matter what arbitrary time of day the sun went down. Somewhere I read that the only substantive justification for it was some 30-40 year old pie-in-the-sky academic research study of this idea that right up front in the preamble said that it could only guess whether any of the savings were real. Basing public policy on bad science is bad enough, but basing it on 30-year old bad science that has never been looked at since is inexcusable.
The only bright spot is that, according to one article, the 2007 implementation is predicated on updating that 30 year old number and if it turns out there are no real savings, the DLS switchover can be called off before it starts. We'll see...
If, and when, ''they'' extend daylight savings time, how
much of an impact will this cause the average citizen
who has appliances, as well as computers, that auto-adjust
for the time change in spring and fall ?
Think about it. Perhaps it's time to discuss this
issue with our elected officials in DC.