condition mean min max 4 h after light 354.1245545 341.60934 366.639769 8 h after light 404.524894 342.356193 466.693595 12 h after light 407.80898 397.30898 418.30898 4 h after dark 413.1563525 394.410939 431.901766 8 h after dark 397.057457 352.36078 441.754134 12 h after dark 299.40975 299.40975 299.40975