condition mean min max 4 h after light 865.8763214999999 622.66747 1109.085173 8 h after light 819.437463 772.117745 866.757181 12 h after light 825.6369915 769.965003 881.30898 4 h after dark 754.0060125 650.700226 857.311799 8 h after dark 658.283567 650.795273 665.771861 12 h after dark 717.362552 717.362552 717.362552