Syncing between 2 calendars

[Windows Central Question]

Hello,
I'm using a Lumia 650 and here is what I want to do:
I get my busniess calendar on that phone and i want to syncronize that calendar to another destination calendar using calDAV/...

so easily said: export existing MobileIron cal to calDAV cal.

Any hints? Sorry I'm 100% new to using Windows phones.

Thanks!