diff --git a/tests/benchmarks/test_serialization_micro.py b/tests/benchmarks/test_serialization_micro.py
index 96170b5eb..687c48a7e 100644
--- a/tests/benchmarks/test_serialization_micro.py
+++ b/tests/benchmarks/test_serialization_micro.py
@@ -349,7 +349,7 @@ def r():
         s.to_json(m_big)
 
 
-@pytest.mark.benchmark(group='model-list-json')
+@pytest.mark.benchmark(group='temporal')
 def test_datetime(benchmark):
     v = SchemaSerializer(core_schema.datetime_schema())
     d = datetime(2022, 12, 2, 12, 13, 14)
@@ -360,6 +360,33 @@ def r():
         v.to_python(d, mode='json')
 
 
+@pytest.mark.benchmark(group='temporal')
+def test_datetime_seconds(benchmark):
+    v = SchemaSerializer(
+        core_schema.datetime_schema(),
+        config={
+            'ser_json_temporal': 'seconds',
+        },
+    )
+    d = datetime(2022, 12, 2, 12, 13, 14)
+    assert v.to_python(d, mode='json') == 1669983194.0
+
+    @benchmark
+    def r():
+        v.to_python(d, mode='json')
+
+
+@pytest.mark.benchmark(group='temporal')
+def test_datetime_milliseconds(benchmark):
+    v = SchemaSerializer(core_schema.datetime_schema(), config={'ser_json_temporal': 'milliseconds'})
+    d = datetime(2022, 12, 2, 12, 13, 14)
+    assert v.to_python(d, mode='json') == 1669983194000.0
+
+    @benchmark
+    def r():
+        v.to_python(d, mode='json')
+
+
 @pytest.mark.benchmark(group='model-list-json')
 def test_uuid(benchmark):
     v = SchemaSerializer(core_schema.uuid_schema())