Berkeley poet Tom Clark drew some of his inspiration from long nighttime walks through his beloved town. “Time’s winged chariot,” he once wrote, “is double parked near the eternity frontier.” On Friday night, Clark, 77, was walking in Berkeley near the Alameda and Marin Avenue when he was struck by a hatchback sedan. He died four hours later at Highland Hospital in Oakland. Police said Clark had been crossing the Alameda westbound near Marin Avenue when he was struck by a southbound motorist. He was conscious and talking when he was taken to a local hospital with head and arm injuries “but his condition worsened and he passed away,” said officer Byron White of the Berkeley police.