Right-To-Left Override Minicalendar Modifier
Right to left minicalendar modifiers allow you to specify, for any individual minicalendar, that the flow of date should be from right-to-left, even though the corresponding minicalendar option is set to false. This is useful when mixing on the same page minicalendars that contain western dates with minicalendars that use a right to left flow of dates such as Jewish or Muslim minicalendars.
Adding this modifier is the equivalent of setting the following option for the minicalendar to which this modifier belongs :

To use this modifier, simply add :rtl to the end of any minicalendar marker.
See also : Muslim minicalendar tokens modifiers.