condition mean min max 4 h after light 695.545435 554.26916 836.82171 8 h after light 736.9957665 628.237326 845.754207 12 h after light 709.244271 655.940529 762.548013 4 h after dark 605.616061 486.262109 724.970013 8 h after dark 614.232258 576.461154 652.003362 12 h after dark 585.956827 585.956827 585.956827