condition mean min max 4 h after light 546.8467333333333 513.3238 601.4888 8 h after light 657.3238666666666 600.2706 734.3791 12 h after light 310.7949 298.9341 326.2129 16 h after light 767.3283 698.4452 902.6418 4 h after dark 695.7747 627.3619 764.1683 8 h after dark 455.04336666666666 327.8003 547.7116