Daylight Saving Time Wastes Energy
According to the Wall Stree Journal Daylight Saving Time might not be as great as some have claimed.
"For decades, conventional wisdom has held that daylight-saving time, which begins March 9, reduces energy use. But a unique situation in Indiana provides evidence challenging that view: Springing forward may actually waste energy."
This study doesn't touch on the other many bad aspects of DST. Like reduced productivity and higher traffic fatalities.
Personally I've always believed that this was just government's attempt to control time. If you want to have special hours during the Summer, that is something you should negotiate without government interference.