condition mean min max 4 h after light 4.93951 4.53565 5.34337 8 h after light 4.09626 3.97637 4.21615 12 h after light 4.77931 3.87637 5.68225 4 h after dark 5.508473333333334 4.743 6.15349 8 h after dark 6.35789 5.6796 6.93935 12 h after dark 4.476473333333334 4.07045 4.7534