condition mean min max 4 h after light 504.82614 364.131636 645.520644 8 h after light 579.3906985 472.900533 685.880864 12 h after light 518.4108229999999 476.596346 560.2253 4 h after dark 273.557893 170.226122 376.889664 8 h after dark 236.6324775 190.371379 282.893576 12 h after dark 460.380096 460.380096 460.380096