Choosing the Schedule menu option in the app or the My Schedule browser menu option will display Work Events assigned to you in a variable calendar format.  The Schedule tab in the app displays current and upcoming Work Events assigned to you.  It will also indicate whether you have missed any check-ins.

Each entry in My Schedule is clickable to drill into the underlying Work Event data.

You may use the Add Event button to add PTO or Reserved Time events to the calendar so that they are visible to schedulers and management.