Imitates the effect of the sun. Direction, shadows, types and color of sunlight can be adjusted in the light settings menu.
Choose any location in world, latitude+longitude, date and local time.
You may also make sun studies by changing speed how quickly the simulation runs. (0 = stopped, 1 = real-time, 3600 = 1 day in 24 seconds).
NOTE: When sun goes under horizon = turned off
The sun simulation does not affect skymaps.
Changing environment deactivates sun simulation. If you want it back, sun needs to be reactivated from menu Menu/Lights/Sunlight