[Idea] Calendar/Schedule

So I know this idea has been suggested already
But I'd like to elaborate on it more, think about how many people actively use Discord and have it open 24/7. I know that trying to find a good schedule app is hard and it's annoying to have multiple applications open, which I'm sure other people would agree.
So what I'm suggesting is you create an inbuilt Calendar and you have options that allow the user to create cycling schedules, or temporary schedules, make them cycle 4 weeks and then stop, sorta like that .
More features

So in terms of expandability, you could add events to the Calendar, you could make it so you can link your Calendar with friends, and you can have options where when the time comes it will call everyone linked to the Calendar and invite them to a designated pre-made call group. There's alot of stuff you could do by adding an inbuilt Calendar, and a schedule creator that you could share with friends would help people like Me. I work on Coding with friends, and sometimes it's hard for us all to remember our designated schedules because we might get distracted or become busy, so it would be crazy helpful for working teams to schedule a team schedule together. It would also prove useful if there was a monthly report on who showed up, or what was missed etc etc.
Anyway, thanks for reading to my ideas if you did