condition mean min max 0 h after light 13.17135 12.6141 13.7286 2 h after light 13.4291 12.1388 14.7194 4 h after light 13.2643 10.1907 16.3379 8 h after light 17.64715 16.9706 18.3237 12 h after light 23.54255 23.4178 23.6673 2 h after dark 21.5396 18.4092 24.67 4 h after dark 18.16135 15.7209 20.6018 8 h after dark 17.696550000000002 16.8397 18.5534 12 h after dark 13.64825 13.0918 14.2047