1 files changed, 15 insertions, 0 deletions
diff --git a/src/backend/utils/adt/date.c b/src/backend/utils/adt/date.c
index ae0f24de2c3..c4da10d47a9 100644
--- a/src/backend/utils/adt/date.c
+++ b/src/backend/utils/adt/date.c
@@ -3125,3 +3125,18 @@ timetz_izone(PG_FUNCTION_ARGS)
 
 	PG_RETURN_TIMETZADT_P(result);
 }
+
+/* timetz_at_local()
+ *
+ * Unlike for timestamp[tz]_at_local, the type for timetz does not flip between
+ * time with/without time zone, so we cannot just call the conversion function.
+ */
+Datum
+timetz_at_local(PG_FUNCTION_ARGS)
+{
+	Datum		time = PG_GETARG_DATUM(0);
+	const char *tzn = pg_get_timezone_name(session_timezone);
+	Datum		zone = PointerGetDatum(cstring_to_text(tzn));
+
+	return DirectFunctionCall2(timetz_zone, zone, time);
+}