condition mean min max 4 h after light 5.84939 4.58841 7.11037 8 h after light 7.939855 7.66148 8.21823 12 h after light 10.50165 10.4307 10.5726 4 h after dark 10.9107 10.3393 11.4821 8 h after dark 9.582105 9.05701 10.1072 12 h after dark 9.098794999999999 9.07448 9.12311