HDRP Day/night cycle with 2 directional lights

Hello,
I’m trying to do a day-night system using HDRP but I’m having a recursive problem. When the sun light ended the dusk, there is some ambien light that iluminates the scene and it take a long time to unity to erase it.

This are some examples:

I don’t know if the probem is in the Procedural Skybox, the Exposure post-porcesing, the lights or the configuration. Do anyone knows what’s happening in my scene?

Thanks in advance

Here is a video speed x100 in the scene