condition mean min max 4 h after light 541.7565999999999 509.085025 574.428175 8 h after light 512.5178545 470.475226 554.560483 12 h after light 632.961687 605.333193 660.590181 4 h after dark 569.005907 470.149864 667.86195 8 h after dark 572.6831099999999 422.847441 722.518779 12 h after dark 740.664195 740.664195 740.664195