The calendar disappeared in the new layout!
there used to be a bar at the bottom to switch between mail and calendar. since the last update, this bar is gone both in the new and the "old" UI. there is no way to open your calendar anymore
We apologize for the inconvenience. We are working on it.
As above. Application basically unusable. Old outlook had a large calendar link at the foot of the screen. This is probably a bug.