diff --git a/lance_ray/index.py b/lance_ray/index.py
index 2fd07591..1cb386fe 100755
--- a/lance_ray/index.py
+++ b/lance_ray/index.py
@@ -602,12 +602,13 @@ def create_scalar_index(
                 is_supported = (
                     pa.types.is_integer(value_type)
                     or pa.types.is_floating(value_type)
+                    or pa.types.is_date32(value_type)
                     or pa.types.is_string(value_type)
                     or pa.types.is_large_string(value_type)
                 )
                 if not is_supported:
                     raise TypeError(
-                        f"Column {column} must be numeric or string type for "
+                        f"Column {column} must be numeric, date32, or string type for "
                         f"{index_type} index, got {value_type}"
                     )
             case "LABEL_LIST":
diff --git a/tests/test_vector_index_options.py b/tests/test_vector_index_options.py
index 34312f3e..a04a5155 100644
--- a/tests/test_vector_index_options.py
+++ b/tests/test_vector_index_options.py
@@ -72,7 +72,7 @@ def id(self) -> int:
 
 class _FakeLanceSchema:
     def field(self, column: str) -> "_FakeLanceField":
-        if column not in {"value", "text", "labels"}:
+        if column not in {"value", "text", "labels", "event_date"}:
             raise KeyError(column)
         return _FakeLanceField()
 
@@ -87,6 +87,8 @@ def field(self, column: str) -> "_FakeField":
             return _FakeField(column, pa.string())
         if column == "labels":
             return _FakeField(column, pa.list_(pa.string()))
+        if column == "event_date":
+            return _FakeField(column, pa.date32())
         else:
             raise KeyError(column)
 
@@ -97,6 +99,7 @@ def __iter__(self) -> Any:
                 _FakeField("value", pa.int64()),
                 _FakeField("text", pa.string()),
                 _FakeField("labels", pa.list_(pa.string())),
+                _FakeField("event_date", pa.date32()),
             ]
         )
 
@@ -467,6 +470,7 @@ def test_create_index_rejects_invalid_num_segments(
     ("index_type", "column"),
     [
         ("BTREE", "value"),
+        ("BTREE", "event_date"),
         ("BITMAP", "value"),
         ("INVERTED", "text"),
         ("FTS", "text"),
@@ -474,6 +478,7 @@ def test_create_index_rejects_invalid_num_segments(
         ("BLOOMFILTER", "value"),
         ("RTREE", "value"),
         ("LABEL_LIST", "labels"),
+        ("ZONEMAP", "event_date"),
     ],
 )
 def test_create_scalar_index_uses_segment_path(