It would be good to have a possibility to check how many hours the sun shines on a specific day on a specific facade's point, for example for the ground floor windows of a building.
An example could be, select one window of a building and get the information: 5hrs of sunshine on 17th January
This is of interest for city planners. For multi store buildings people want to know how much light during the day they will get on the ground floor compared to the top floor.
