IE has an interesting story -- currently, India has only one time zone, Indian Standard Time; the Parliamentary Standing Committee on Energy has just put forth a proposal to create a new zone for northeastern states in the hopes of potentially saving power consumption.
The reporter explains, "The logic behind the argument is that owing to early sunset in the North-East, lights have to be switched on in offices in the evening, leading to excess consumption of power. This can be avoided by advancing the clock by one or one-and-half hours so that offices close before sunset."
Wikipedia weighs in on the subject, and at best, the argument is debatable. But it certainly is an interesting topic -- and I thought daylight savings time was just a plot by shadow governments to undermine the focus and resolve of the American public by continually disturbing their biorhythms!