condition mean min max 4 h after light 452.6 452.6 452.6 8 h after light 571.6 421.6 721.6 12 h after light 630.2 624.9 635.5 4 h after dark 798.6500000000001 769.2 828.1 8 h after dark 782.5 524.8 1040.2 12 h after dark 690.55 572.6 808.5