condition mean min max 4 h after light 4.5784400000000005 4.27473 4.88215 8 h after light 4.4344149999999996 4.30193 4.5669 12 h after light 3.81959 3.43998 4.1992 4 h after dark 7.29949 7.2589 7.32368 8 h after dark 6.9903933333333335 6.67479 7.15507 12 h after dark 6.9823 6.63315 7.58382