How to Integrate Non-Gregorian Calendars in Calendar Module? I plan to create a simple event calendar on Drupal 7 that uses the Arabic Calendar (Hijri) instead of Gregorian (western) calendar. Instead of developing a new module, I was wondering if I can use the capabilities of Calendar Module and make it use Hijri Calendar instead of Georgian calendar in views and in the calendar template. The mini-calendar should be Hijri Calendar. No need for Month or Year calendars. 

There is a module called Calendar Systems that adds the support of Hijri Calendar to Drupal but I'm not sure how it can be integrated with the Calendar Module or Views. 

What are my options?
You can use the latest development snapshot of the Calendar Systems module. It works fine.