Refs #32365 -- Removed is_dst argument for various methods and functions.

Per deprecation timeline.

django/db/models/functions/datetime.py

@@ -241,18 +241,14 @@ class TruncBase(TimezoneMixin, Transform):
     kind = None
     tzinfo = None
 
-    # RemovedInDjango50Warning: when the deprecation ends, remove is_dst
-    # argument.
     def __init__(
         self,
         expression,
         output_field=None,
         tzinfo=None,
-        is_dst=timezone.NOT_PASSED,
         **extra,
     ):
         self.tzinfo = tzinfo
-        self.is_dst = is_dst
         super().__init__(expression, output_field=output_field, **extra)
 
     def as_sql(self, compiler, connection):
@@ -343,7 +339,7 @@ class TruncBase(TimezoneMixin, Transform):
                 pass
             elif value is not None:
                 value = value.replace(tzinfo=None)
-                value = timezone.make_aware(value, self.tzinfo, is_dst=self.is_dst)
+                value = timezone.make_aware(value, self.tzinfo)
             elif not connection.features.has_zoneinfo_database:
                 raise ValueError(
                     "Database returned an invalid datetime value. Are time "
@@ -360,22 +356,16 @@ class TruncBase(TimezoneMixin, Transform):
 
 
 class Trunc(TruncBase):
-
-    # RemovedInDjango50Warning: when the deprecation ends, remove is_dst
-    # argument.
     def __init__(
         self,
         expression,
         kind,
         output_field=None,
         tzinfo=None,
-        is_dst=timezone.NOT_PASSED,
         **extra,
     ):
         self.kind = kind
-        super().__init__(
-            expression, output_field=output_field, tzinfo=tzinfo, is_dst=is_dst, **extra
-        )
+        super().__init__(expression, output_field=output_field, tzinfo=tzinfo, **extra)
 
 
 class TruncYear(TruncBase):

django/db/models/query.py

@@ -1372,11 +1372,7 @@ class QuerySet(AltersData):
             .order_by(("-" if order == "DESC" else "") + "datefield")
         )
 
-    # RemovedInDjango50Warning: when the deprecation ends, remove is_dst
-    # argument.
-    def datetimes(
-        self, field_name, kind, order="ASC", tzinfo=None, is_dst=timezone.NOT_PASSED
-    ):
+    def datetimes(self, field_name, kind, order="ASC", tzinfo=None):
         """
         Return a list of datetime objects representing all available
         datetimes for the given field_name, scoped to 'kind'.
@@ -1400,7 +1396,6 @@ class QuerySet(AltersData):
                     kind,
                     output_field=DateTimeField(),
                     tzinfo=tzinfo,
-                    is_dst=is_dst,
                 ),
                 plain_field=F(field_name),
             )

django/utils/timezone.py

@@ -37,9 +37,6 @@ __all__ = [  # noqa for utc RemovedInDjango50Warning.
     "make_naive",
 ]
 
-# RemovedInDjango50Warning: sentinel for deprecation of is_dst parameters.
-NOT_PASSED = object()
-
 
 def __getattr__(name):
     if name != "utc":
@@ -259,17 +256,8 @@ def is_naive(value):
     return value.utcoffset() is None
 
 
-def make_aware(value, timezone=None, is_dst=NOT_PASSED):
+def make_aware(value, timezone=None):
     """Make a naive datetime.datetime in a given time zone aware."""
-    if is_dst is NOT_PASSED:
-        is_dst = None
-    else:
-        warnings.warn(
-            "The is_dst argument to make_aware(), used by the Trunc() "
-            "database functions and QuerySet.datetimes(), is deprecated as it "
-            "has no effect with zoneinfo time zones.",
-            RemovedInDjango50Warning,
-        )
     if timezone is None:
         timezone = get_current_timezone()
     # Check that we won't overwrite the timezone of an aware datetime.