Daylight Saving Time wasn't introduced in America until 1918, when it was meant to conserve energy for World War I. The thought was, essentially, Franklin's: that people tend be more active in the evenings, so the extra daylight there would mean fewer hours where people lit their houses at night. After the war, farmers lobbied to get the law repealed.
The reasons to start daylight savings time are out dated and incorrect. If we are saving energy let's go year round with Daylight Saving Time. If we are not saving energy let's drop Daylight Saving Time!