Update Iran holidays (#2234)

vacanza · Jan 23, 2025 · 4c678d1 · 4c678d1
1 parent 7566884
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diff --git a/README.rst b/README.rst
@@ -528,7 +528,7 @@ All other default values are highlighted with bold:
    * - Iran
      - IR
      -
-     - en_US, **fa**
+     - en_US, **fa_IR**
      -
    * - Ireland
      - IE

diff --git a/holidays/calendars/persian.py b/holidays/calendars/persian.py
@@ -26,6 +26,12 @@ class _Persian:
     START_YEAR = 1901
     END_YEAR = 2100
 
+    def is_leap_year(self, year: int) -> bool:
+        """
+        Is Persian year that begins in the specified Gregorian year a leap year.
+        """
+        return (year % 33) in {3, 7, 11, 16, 20, 24, 28, 32}
+
     def new_year_date(self, year: int) -> Optional[date]:
         """
         Return Gregorian date of Persian new year (1 Farvardin) in a given Gregorian year.