diff --git a/superset/connectors/base/models.py b/superset/connectors/base/models.py
index 8042ac9c1e0..7ce19145439 100644
--- a/superset/connectors/base/models.py
+++ b/superset/connectors/base/models.py
@@ -145,10 +145,11 @@ class BaseDatasource(AuditMixinNullable, ImportMixin):
             order_by_choices.append((json.dumps([s, True]), s + ' [asc]'))
             order_by_choices.append((json.dumps([s, False]), s + ' [desc]'))
 
-        verbose_map = {
+        verbose_map = {'__timestamp': 'Time'}
+        verbose_map.update({
             o.metric_name: o.verbose_name or o.metric_name
             for o in self.metrics
-        }
+        })
         verbose_map.update({
             o.column_name: o.verbose_name or o.column_name
             for o in self.columns