condition mean min max 4 h after light 463.5137985 435.30898 491.718617 8 h after light 586.175062 552.830429 619.519695 12 h after light 619.8508655 619.546597 620.155134 4 h after dark 617.278881 574.462826 660.094936 8 h after dark 611.5471580000001 569.505402 653.588914 12 h after dark 543.060245 543.060245 543.060245