condition mean min max 0 h after light 27.13695 26.941 27.3329 4 h after light 25.73205 24.3629 27.1012 8 h after light 12.29805 11.354 13.2421 4 h after dark 21.0265 19.5497 22.5033 8 h after dark 24.450400000000002 21.6324 27.2684 12 h after dark 21.372149999999998 19.781 22.9633