How in iOS to adjust the volume change of the call depending on the time?

How in iOS to adjust the volume change of the call depending on the time? In iOS there is a Do Not Disturb mode, in which you can set an exception and then the question arises how to set up that the call was not too loud. When the time interval is over, then again switched to full volume.

In Android, it's easy to configure in Llama or Tasker applications what kind of application is there for iOS?

[Edited by Host]