[Day/Night Cycle] Objects get too dark at night [SOLVED]

[I FOUND THE SOLUTION: TURN OFF REALTIME GLOBAL ILUMINATION IN WINDOW/LIGHTNING/SETTINGS]

So i made a very simple day/ night cycle. Here’s the script

private void Update()
{
transform.Rotate (Vector3.right, 0.1f);
}
It is attached to the directional light

Imgur: The magic of the Internet (sorry i had to censor some things)

As you can see in the photo, the terrain becomes too dark. That happens when the sun points straight up. Also, other objects become dark too.
How i can fix this? I have to change some settings?
BTW im using Unity 2017.4.0f1

It’s normal. There is NO LIGHT going towards the objects. In real life, you usually have city lights, star lights, solar light reflecting from the moon…
That is why it seem surreal to be so dark, but it’s normal. So try to either reduce the amount of light, or add some “night” lights into the scene when the sun’s down.

You could try going to window/lighting and adjust the ambient light. This will provide some light at all times.