“Failed” is your opinion
Year-round experiment (1974-1975)[edit]
During the 1973 oil embargo by the Organization of Arab Petroleum Exporting Countries (OAPEC), in an effort to conserve fuel, Congress enacted a trial period of year-round DST (P.L. 93-182), beginning January 6, 1974, and ending April 27, 1975.[8] The trial was hotly debated. Those in favor pointed to increased daylight hours in the winter evening: more time for recreation, reduced lighting and heating demands, reduced crime, and reduced automobile accidents. The opposition was concerned about children leaving for school in the dark. The act was amended in October 1974 (P.L. 93-434) to return to standard time for the period beginning October 27, 1974, and ending February 23, 1975, when DST resumed. When the trial ended in 1975, the country returned to observing summer DST (with the aforementioned exceptions).[7]
I do remember this. I remember going to school in the dark. I didn’t like it. But too bad. Kids today still go to school in the dark. So things are just as bad.
Not an unreasonable opinion. It was the infuriated moms that shrieked about their kiddies waiting for school buses in the dark. Nobody wanted to buck that tsunami of outrage, or risk a recurrence. Feminism was on its upswing then.
I was not adversely affected by the year-round DST, being myself neither a mom nor a schoolkid. I just thought was a dumb idea.