condition mean min max 4 h after light 4.55463 4.47952 4.683330000000001 8 h after light 4.503933333333333 4.46381 4.53223 12 h after light 4.61558 4.52669 4.6728 4 h after dark 4.553823333333333 4.37271 4.73778 8 h after dark 4.4981100000000005 4.38539 4.57925 12 h after dark 4.60615 4.52891 4.69453