condition mean min max 4 h after light 683.8213995 584.483982 783.158817 8 h after light 638.701588 578.576302 698.826874 12 h after light 728.017879 640.219451 815.816307 4 h after dark 711.809795 568.730168 854.889422 8 h after dark 817.5262749999999 791.539749 843.512801 12 h after dark 598.577731 598.577731 598.577731