condition mean min max 4 h after light 266.0821505 238.009167 294.155134 8 h after light 231.393649 231.328244 231.459054 12 h after light 281.8168635 253.349115 310.284612 4 h after dark 404.53978 302.616734 506.462826 8 h after dark 399.9748695 363.483038 436.466701 12 h after dark 336.116957 336.116957 336.116957