condition mean min max 4 h after light 603.6511255 491.165045 716.137206 8 h after light 548.896869 464.232057 633.561681 12 h after light 409.767931 377.919081 441.616781 4 h after dark 290.6931595 206.538448 374.847871 8 h after dark 227.73654 216.138128 239.334952 12 h after dark 332.867016 332.867016 332.867016