How to hide corporate contacts after 18.00?

Question

Android

An android smartphone is used for both personal and corporate purposes, so there are many numbers of clients and colleagues in contacts, is it possible to hide certain contacts about the schedule to avoid accidental dialing, whether it be from the call history, or from the smartphone's contact book?

Answer 1

There are no such extensions, at least I did not find it.
Therefore, write the code and hope that the guys from Google will release it.
Or locally introduce your crutch.

Answer 2

There is a possibility. I use grouping.