The beneficial aspects of daylight savings time have expired. Numerous studies indicate an increase in energy consumption caused by this outdated and confusing tradition.
Consult Wikipedia or other resources for a detailed explanation of both sides of the issue, then imagine how convenient it would be to never need adjust your watches, microwaves, PS3s, DVD players, sleep schedules, etcetera, ever again.
If the best case hypothetical energy savings is so negligible that it can even be in doubt, then the consternation caused twice a year, the lost productivity from erroneous or forgotten clock adjustments and DST-related "jet-lag" outweighs the benefit.