If you ship a product for Iranian users, or anyone who reads Jalali (Persian, Shamsi) dates, you already know the usual options. One package does the math and stops there. Another gives you a picker glued to Moment. A third is React-only, or Vue-only, and forces a Jalali-shaped value into your forms and database. You end up stitching three libraries together and still worrying about leap years. ja... [read more]