condition mean min max 4 h after light 536.8264415 478.15571 595.497173 8 h after light 525.431374 513.59223 537.270518 12 h after light 614.7120895 539.539749 689.88443 4 h after dark 656.8360675 605.30898 708.363155 8 h after dark 590.8496104999999 513.023775 668.675446 12 h after dark 832.128425 832.128425 832.128425