condition mean min max 4 h after light 12.2459 11.6004 12.8914 8 h after light 15.3698 15.3476 15.392 12 h after light 11.92635 11.3031 12.5496 4 h after dark 14.73885 12.776 16.7017 8 h after dark 13.195599999999999 12.8486 13.5426 12 h after dark 15.43985 15.0546 15.8251