This model contains operator to compute

-time of sunrise and sunset

-angles to build the position of the sun in the sky

-a method to build a map of shadow duration

I used a command in Building Space Planning to check that the result is correct, but I didn't reuse the same method of computation, so I suppose the result is correct for both.

Warning, time must be manipulated in seconds but the model has a converter to display or input time in h.min.s

the model is here :