condition mean min max 4 h after light 1470.0973175 838.52353 2101.671105 8 h after light 1111.306713 810.232057 1412.381369 12 h after light 1276.5351034999999 1019.145843 1533.924364 4 h after dark 731.685299 648.796365 814.574233 8 h after dark 3381.6849334999997 872.009104 5891.360763 12 h after dark 1331.693595 1331.693595 1331.693595