First of all, the real name of it is Daylight Saving Time. Because the inventors were not hicks who add a superfluous "s" to everything. Anyways, moving on.
|George Vernon Hudson|
Many people think that DST is an energy saver, which is one of the reasons it's practiced so widely. But in fact, there is almost no real energy savings, and some energy losses, since people tend to drive more when the sun is out. Seasonal depression is lessened, but skin cancer rates rise. Retailers like DST because people spend more, but it is hated by bars and farmers, the former because people don't like sitting in dank bars spending money when the sun is out, the latter because corn knows that it's really an hour later and stubbornly slows its growth in protest. DST has been shown to reduce crime. Even murderers would rather enjoy the sun's rays than sit in some dark basement going all Dexter on someone. Basically, the statistics are mixed and can be skewed either way depending on your objective, like all statistics.
As a fan of daylight who can't easily get up before nine a.m. without assistance, I love DST. Yeah, I'm pretty jet-lagged for a week after it goes into effect (though it's worse in the fall), but it's a small price to pay for being able to romp outside for an extra hour longer for the next six (and now eight, thanks, Obama!) months. If it were up to me, we would have year-round DST, at least until the funding comes through to build a giant replica of the sun to shine 24/7/365, angering farmers everywhere.