condition mean min max 4 h after light 657.994094 560.770518 755.21767 8 h after light 553.4381905 520.93951 585.936871 12 h after light 473.49027650000005 433.41212 513.568433 4 h after dark 339.824336 292.238391 387.410281 8 h after dark 280.758682 196.69712 364.820244 12 h after dark 504.139211 504.139211 504.139211