bolkedebruin commented on code in PR #34683:
URL: https://github.com/apache/airflow/pull/34683#discussion_r1346057255


##########
airflow/serialization/serializers/timezone.py:
##########
@@ -17,17 +17,32 @@
 # under the License.
 from __future__ import annotations
 
-from typing import TYPE_CHECKING
+import datetime
+import sys
+from typing import TYPE_CHECKING, cast
 
 from airflow.utils.module_loading import qualname
 
+PY39 = sys.version_info >= (3, 9)
+
 if TYPE_CHECKING:
     from pendulum.tz.timezone import Timezone
 
     from airflow.serialization.serde import U
 
 
-serializers = ["pendulum.tz.timezone.FixedTimezone", 
"pendulum.tz.timezone.Timezone"]
+serializers = [
+    "pendulum.tz.timezone.FixedTimezone",
+    "pendulum.tz.timezone.Timezone",
+]
+
+if PY39:
+    serializers.append("zoneinfo.ZoneInfo")
+    from zoneinfo import ZoneInfo
+else:
+    serializers.append("backports.zoneinfo.ZoneInfo")
+    from backports.zoneinfo import ZoneInfo

Review Comment:
   Its an extreme edge case I guess, but I can adjust it



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