condition mean min max 4 h after light 58.3511 56.387 60.3152 8 h after light 47.9915 47.2494 48.7336 12 h after light 35.13475 26.8797 43.3898 4 h after dark 58.0568 52.0769 66.1815 8 h after dark 66.6813 63.474 70.4107 12 h after dark 66.53569999999999 63.1945 70.0943