Feature request: add possibility to show "reachable at the following times"[contact details]

all os: It would be great if you were able to add the option "reachable at the following times". So people know when you're going to be online if they click on contact details. And the ability to add a website and show unexpected events: for example: Today reachable from 10:00AM to 03:00PM or "I am on summer holiday until the 7. July".

I've created an example: