condition mean min max 4 h after light 609.984305 394.847441 825.121169 8 h after light 664.22518 399.038526 929.411834 12 h after light 1344.703776 506.201872 2183.20568 4 h after dark 3228.5987595 1241.521455 5215.676064 8 h after dark 3811.8675869999997 1693.154135 5930.581039 12 h after dark 2249.013909 2249.013909 2249.013909