condition mean min max 4 h after light 407.4 407.4 407.4 8 h after light 645.1 302.5 987.7 12 h after light 809.45 761.7 857.2 4 h after dark 486.29999999999995 254.7 717.9 8 h after dark 167.5 43.3 291.7 12 h after dark 46.0 38.3 53.7