diff --git a/lib/galaxy/schema/schema.py b/lib/galaxy/schema/schema.py
index b863546c343..cbbad2608ea 100644
--- a/lib/galaxy/schema/schema.py
+++ b/lib/galaxy/schema/schema.py
@@ -39,7 +39,10 @@ from galaxy.schema.fields import (
     EncodedDatabaseIdField,
     ModelClassField,
 )
-from galaxy.schema.types import RelativeUrl
+from galaxy.schema.types import (
+    OffsetNaiveDatetime,
+    RelativeUrl,
+)
 
 USER_MODEL_CLASS_NAME = "User"
 GROUP_MODEL_CLASS_NAME = "Group"
@@ -1112,8 +1115,8 @@ class JobIndexQueryPayload(Model):
     user_id: Optional[DecodedDatabaseIdField] = None
     tool_ids: Optional[List[str]] = None
     tool_ids_like: Optional[List[str]] = None
-    date_range_min: Optional[Union[datetime, date]] = None
-    date_range_max: Optional[Union[datetime, date]] = None
+    date_range_min: Optional[Union[OffsetNaiveDatetime, date]] = None
+    date_range_max: Optional[Union[OffsetNaiveDatetime, date]] = None
     history_id: Optional[DecodedDatabaseIdField] = None
     workflow_id: Optional[DecodedDatabaseIdField] = None
     invocation_id: Optional[DecodedDatabaseIdField] = None
diff --git a/lib/galaxy/schema/types.py b/lib/galaxy/schema/types.py
index cf39c391d3a..49b42126907 100644
--- a/lib/galaxy/schema/types.py
+++ b/lib/galaxy/schema/types.py
@@ -1,3 +1,6 @@
+from datetime import datetime
+
+from pydantic.datetime_parse import parse_datetime
 from typing_extensions import Literal
 
 # Relative URLs cannot be validated with AnyUrl, they need a scheme.
@@ -5,3 +8,14 @@ from typing_extensions import Literal
 RelativeUrl = str
 
 LatestLiteral = Literal["latest"]
+
+
+class OffsetNaiveDatetime(datetime):
+    @classmethod
+    def __get_validators__(cls):
+        yield cls.validate
+
+    @classmethod
+    def validate(cls, v):
+        v = parse_datetime(v)
+        return v.replace(tzinfo=None) - v.utcoffset() if v.tzinfo else v
diff --git a/lib/galaxy/webapps/galaxy/api/jobs.py b/lib/galaxy/webapps/galaxy/api/jobs.py
index d88ba5c40f8..1eb13167b58 100644
--- a/lib/galaxy/webapps/galaxy/api/jobs.py
+++ b/lib/galaxy/webapps/galaxy/api/jobs.py
@@ -38,6 +38,7 @@ from galaxy.managers.jobs import (
 )
 from galaxy.schema.fields import EncodedDatabaseIdField
 from galaxy.schema.schema import JobIndexSortByEnum
+from galaxy.schema.types import OffsetNaiveDatetime
 from galaxy.util import listify
 from galaxy.web import (
     expose_api,
@@ -103,13 +104,13 @@ ToolIdLikeQueryParam: Optional[str] = Query(
     description="Limit listing of jobs to those that match one of the included tool ID sql-like patterns. If none, all are returned",
 )
 
-DateRangeMinQueryParam: Optional[Union[datetime, date]] = Query(
+DateRangeMinQueryParam: Optional[Union[OffsetNaiveDatetime, date]] = Query(
     default=None,
     title="Date Range Minimum",
     description="Limit listing of jobs to those that are updated after specified date (e.g. '2014-01-01')",
 )
 
-DateRangeMaxQueryParam: Optional[Union[datetime, date]] = Query(
+DateRangeMaxQueryParam: Optional[Union[OffsetNaiveDatetime, date]] = Query(
     default=None,
     title="Date Range Maximum",
     description="Limit listing of jobs to those that are updated before specified date (e.g. '2014-01-01')",
diff --git a/test/unit/webapps/api/test_datetime_parsing.py b/test/unit/webapps/api/test_datetime_parsing.py
new file mode 100644
index 00000000000..29ea26b14ff
--- /dev/null
+++ b/test/unit/webapps/api/test_datetime_parsing.py
@@ -0,0 +1,14 @@
+from pydantic import BaseModel
+
+from galaxy.schema.types import OffsetNaiveDatetime
+
+
+class Time(BaseModel):
+    time: OffsetNaiveDatetime
+
+
+def test_naive_datetime_parsing():
+    with_tz = Time(time="2022-08-15T11:29:32.853974+02:00")
+    without_tz = Time(time="2022-08-15T09:29:32.853974")
+    assert with_tz.time == without_tz.time
+    assert with_tz.time.tzinfo is None