In this tutorial I will show you how to crate a day and night cycle in Unity just by animating the direct light and using it as the sun.
You will also see how to create dynamic lights that can be switched on on night time and switched off on day time.
Watch this tutorial:
And get the package used in this tutorial: https://drive.google.com/open?id=1HOBZV2ahhH8xd33G3nownD6LDr0KfEh4