condition mean min max 4 h after light 223.690361 107.107139 340.273583 8 h after light 410.27807 313.631776 506.924364 12 h after light 373.1111545 290.430729 455.79158 4 h after dark 146.4060275 79.671713 213.140342 8 h after dark 60.054603 56.301097 63.808109 12 h after dark 98.95913 98.95913 98.95913