condition mean min max 4 h after light 504.0713395 459.858553 548.284126 8 h after light 546.3158105 484.304634 608.326987 12 h after light 572.5710965000001 516.076992 629.065201 4 h after dark 541.2599305 497.616672 584.903189 8 h after dark 507.68888949999996 450.873489 564.50429 12 h after dark 370.241288 370.241288 370.241288