condition mean min max 0 h after light 48.5547 47.177 49.9324 4 h after light 24.08965 22.3691 25.8102 8 h after light 14.61915 12.8126 16.4257 4 h after dark 30.4647 29.7913 31.1381 8 h after dark 31.231099999999998 30.8142 31.648 12 h after dark 38.41245 31.6625 45.1624