condition mean min max 4 h after light 2695.699187 2490.285672 2901.112702 8 h after light 2391.309631 2324.810723 2457.808539 12 h after light 2287.017456 2262.463526 2311.571386 4 h after dark 2603.366672 2349.847441 2856.885903 8 h after dark 2372.3449215 2258.832048 2485.857795 12 h after dark 2464.29386 2464.29386 2464.29386