condition mean min max 4 h after light 510.0074655 470.013643 550.001288 8 h after light 860.56783 784.414387 936.721273 12 h after light 769.3465785000001 656.500848 882.192309 4 h after dark 761.3808655 629.903178 892.858553 8 h after dark 518.7180485 329.424526 708.011571 12 h after dark 302.312282 302.312282 302.312282