diff --git a/etl/hubspot/tests/test_hubspot_deal_differ.py b/etl/hubspot/tests/test_hubspot_deal_differ.py
index eaa2940d3..9c581da89 100644
--- a/etl/hubspot/tests/test_hubspot_deal_differ.py
+++ b/etl/hubspot/tests/test_hubspot_deal_differ.py
@@ -605,6 +605,34 @@ def test_abri_survey_amendment__non_abri_deal__returns_false() -> None:
     assert result is False
 
 
+def test_abri_survey_amendment__date_and_time_unchanged__returns_false() -> None:
+    deal_id = uuid.uuid4()
+
+    # Arrange
+    old_deal = make_old_deal(
+        id=deal_id,
+        project_code="Abri Condition",
+        confirmed_survey_date=datetime(2026, 7, 15, tzinfo=timezone.utc),
+        confirmed_survey_time="09:30",
+    )
+    new_deal = make_new_deal(
+        deal_id,
+        project_code="Abri Condition",
+        confirmed_survey_date="2026-07-15",
+        confirmed_survey_time="09:30",
+    )
+
+    # Act
+    result = HubspotDealDiffer.check_for_abri_survey_amendment(
+        new_deal=new_deal,
+        new_project=None,
+        old_deal=old_deal,
+    )
+
+    # Assert
+    assert result is False
+
+
 # =======================
 # DB UPDATE TRIGGER TESTS
 # =======================