How to add more than Gregorian/Buddhist/Japanese calendars to iOS?

I saw a post (link below) with a screenshot of someone having added a “PERSIAN_CALENDAR” to their iPhone default. I cannot seem to find any calendar options other than the Gregorian, Buddhist and Japanese in one calendar setting and under “alternative Calendars I see: Chinese, Islamic and Hebrew.


How can I get Persian calendar integrated with my default iOS calendar? Obviously there are third party apps but can I integrate one with the default so I see/use the two calendars simultaneously on the calendar app on the iPhone/Mac?


Someone else has done it (screenshot below) but how?


https://discussions.apple.com/thread/250530800

Posted on Jun 16, 2021 8:18 AM

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How to add more than Gregorian/Buddhist/Japanese calendars to iOS?

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