condition mean min max 4 h after light 11.680589 11.305912 12.055266 8 h after light 11.5617095 11.480519 11.6429 12 h after light 13.406943 12.055266 14.75862 4 h after dark 12.4847695 12.084367 12.885172 8 h after dark 12.2953505 12.055266 12.535435 12 h after dark 10.421921 10.421921 10.421921