diff --git a/superset/db_engine_specs/crate.py b/superset/db_engine_specs/crate.py
index 46ce1e08ff24e..4952bd5a0d7d6 100644
--- a/superset/db_engine_specs/crate.py
+++ b/superset/db_engine_specs/crate.py
@@ -59,7 +59,7 @@ def convert_dttm(
         sqla_type = cls.get_sqla_column_type(target_type)
 
         if isinstance(sqla_type, types.TIMESTAMP):
-            return f"{dttm.timestamp() * 1000}"
+            return f"CAST('{dttm.isoformat()}' AS TIMESTAMP)"
         return None
 
     @classmethod
diff --git a/tests/unit_tests/db_engine_specs/test_crate.py b/tests/unit_tests/db_engine_specs/test_crate.py
index 2cb1cd78966dc..d2bace955c10a 100644
--- a/tests/unit_tests/db_engine_specs/test_crate.py
+++ b/tests/unit_tests/db_engine_specs/test_crate.py
@@ -59,7 +59,7 @@ def test_alter_new_orm_column() -> None:
 @pytest.mark.parametrize(
     "target_type,expected_result",
     [
-        ("TimeStamp", "1546398245678.9"),
+        ("TimeStamp", "CAST('2019-01-02T03:04:05.678900' AS TIMESTAMP)"),
         ("UnknownType", None),
     ],
 )