I'm using DAVDroid 1.9.1-ose (from F-Droid) and AOSP Calendar 6.0.1 on LineageOS 13/Android 6.0.1 to connect to an OwnDrive 11.0.2 (stable) account (that I don't manage) and noticed the following bug :
If I create a new event that last several full days (e.g. from 2017-11-09 to 2017-11-15 and tick "full day" or whatever it's called in english), it will be saved as if it lasted one day (e.g. from 2017-11-09 to 2017-11-14).
If I want the event to last the full duration, I need to select one more day (e.g. from 2017-11-09 to 2017-11-16).
(Please note that I'm not 100% sure that's a DAVDroid bug, but I'm seeking guidance here. Thank you !)