condition mean min max 4 h after light 732.8 732.8 732.8 8 h after light 704.5 698.9 710.1 12 h after light 833.3 821.4 845.2 4 h after dark 789.8 774.2 805.4 8 h after dark 571.3499999999999 533.3 609.4 12 h after dark 645.9 630.9 660.9