condition mean min max 4 h after light 315.385124 297.153576 333.616672 8 h after light 376.7174845 295.093338 458.341631 12 h after light 211.9791975 174.523846 249.434549 4 h after dark 131.1281855 119.556905 142.699466 8 h after dark 83.039421 76.954167 89.124675 12 h after dark 65.607053 65.607053 65.607053