condition mean min max 4 h after light 439.3 439.3 439.3 8 h after light 483.5 400.4 566.6 12 h after light 772.0 624.2 919.8 4 h after dark 1035.05 986.4 1083.7 8 h after dark 1036.25 983.7 1088.8 12 h after dark 785.0 782.9 787.1