condition mean min max 4 h after light 42.441 42.2738 42.6082 8 h after light 36.118 35.813 36.423 12 h after light 32.41685 32.394 32.4397 4 h after dark 41.796099999999996 38.7827 44.8095 8 h after dark 47.23895 46.9889 47.489 12 h after dark 46.5645 46.2143 46.9147