diff --git a/domain/abri/slots.py b/domain/abri/slots.py
index 992426ee9..d6b7a2026 100644
--- a/domain/abri/slots.py
+++ b/domain/abri/slots.py
@@ -5,9 +5,16 @@ from domain.abri.models import SlotCode
 
 _MIDDAY = time(12, 0)
 
+# HubSpot's confirmed-time field carries these half-day labels, not clock times.
+_LABEL_SLOTS: dict[str, SlotCode] = {"morning": "AM", "afternoon": "PM"}
+
 
 def slot_for_confirmed_time(confirmed_time: Optional[str]) -> SlotCode:
     if confirmed_time is None or confirmed_time.strip() == "":
         return "AD"
-    parsed = datetime.strptime(confirmed_time.strip(), "%H:%M").time()
+    normalised = confirmed_time.strip()
+    label_slot = _LABEL_SLOTS.get(normalised.lower())
+    if label_slot is not None:
+        return label_slot
+    parsed = datetime.strptime(normalised, "%H:%M").time()
     return "AM" if parsed < _MIDDAY else "PM"
diff --git a/tests/domain/abri/test_slots.py b/tests/domain/abri/test_slots.py
index fa5283691..7d72a00c4 100644
--- a/tests/domain/abri/test_slots.py
+++ b/tests/domain/abri/test_slots.py
@@ -38,6 +38,26 @@ def test_a_confirmed_time_at_or_after_midday_books_the_afternoon_slot(
     assert slot == "PM"
 
 
+@pytest.mark.parametrize("confirmed_time", ["morning", "Morning", "  MORNING  "])
+def test_hubspots_morning_label_books_the_morning_slot(confirmed_time: str) -> None:
+    # Act
+    slot = slot_for_confirmed_time(confirmed_time)
+
+    # Assert
+    assert slot == "AM"
+
+
+@pytest.mark.parametrize("confirmed_time", ["afternoon", "Afternoon", "  AFTERNOON  "])
+def test_hubspots_afternoon_label_books_the_afternoon_slot(
+    confirmed_time: str,
+) -> None:
+    # Act
+    slot = slot_for_confirmed_time(confirmed_time)
+
+    # Assert
+    assert slot == "PM"
+
+
 @pytest.mark.parametrize("confirmed_time", ["half nine", "25:00", "9.30am"])
 def test_an_unparseable_confirmed_time_fails_loudly_rather_than_booking_all_day(
     confirmed_time: str,