onfocus

"But daylight saving time doesn’t just fail to deliver the single most important benefit expected of it. It also generates a slew of harms. In the days following the onset of daylight time each March, there is a measurable increase in suicides, atrial fibrillation, strokes, and heart attacks. Workplace injuries climb. So do fatal car crashes and emergency room visits. There is even evidence that judges hand down harsher sentences."

There's also evidence that several programmers quit the profession every year because calculating date differences while accounting for hour shifts across time zones drives them out. But yeah we're not really getting energy savings through mass interference with our sleep schedules.