condition mean min max 4 h after light 546.9 546.9 546.9 8 h after light 592.1 497.1 687.1 12 h after light 644.3 569.3 719.3 4 h after dark 748.5999999999999 652.9 844.3 8 h after dark 788.75 729.3 848.2 12 h after dark 676.75 615.7 737.8