diff --git a/sqlite_utils/db.py b/sqlite_utils/db.py
index 1b58f94..414ec97 100644
--- a/sqlite_utils/db.py
+++ b/sqlite_utils/db.py
@@ -798,6 +798,8 @@ def chunks(sequence, size):
 def jsonify_if_needed(value):
     if isinstance(value, (dict, list, tuple)):
         return json.dumps(value)
+    elif isinstance(value, (datetime.time, datetime.date, datetime.datetime)):
+        return value.isoformat()
     else:
         return value
 
diff --git a/tests/test_create.py b/tests/test_create.py
index a275a7f..04b1fbf 100644
--- a/tests/test_create.py
+++ b/tests/test_create.py
@@ -111,6 +111,7 @@ def test_create_table_with_not_null(fresh_db):
             {"create": "Reserved word", "table": "Another"},
             [{"name": "create", "type": "TEXT"}, {"name": "table", "type": "TEXT"}],
         ),
+        ({"day": datetime.time(11, 0)}, [{"name": "day", "type": "TEXT"}]),
     ),
 )
 def test_create_table_from_example(fresh_db, example, expected_columns):