Using daylight

I want to add some daylight for the MI6 building I created, so I click create, lights and daylight system. At the top view drag the size of the compass at set the height of the light are going to be.
From the control parameters, I can set the time, date and location of the light.











Click modify, Daylight parameters, choose mr sun for sunlight and mr sky for skylight. If I want to change the time of the light, I can go to position and click setup.