condition mean min max 4 h after light 246.695655 246.521915 246.869395 8 h after light 276.3397845 251.06403 301.615539 12 h after light 313.975058 245.243943 382.706173 4 h after dark 260.87395749999996 257.001288 264.746627 8 h after dark 220.98236550000001 220.363275 221.601456 12 h after dark 321.770518 321.770518 321.770518