Need help setting the Month-end Date on Reports

Summary

Need help setting the Month-end Date on Reports

Content

The Calendar month-end date reported from the Time dimension on historical subject areas is reporting one day earlier than the actual month-end date--see screenshot.  I am fairly certain it is picking up a different time zone.  Can someone tell me where I can set this?  I check my settings under "My Account" and they are defaulting to the correctly to my time zone.