diff --git a/superset/db_engine_specs.py b/superset/db_engine_specs.py
index 0441fe6a6c42a..0dc6f9b60301f 100644
--- a/superset/db_engine_specs.py
+++ b/superset/db_engine_specs.py
@@ -1425,6 +1425,10 @@ class ImpalaEngineSpec(BaseEngineSpec):
         Grain('year', _('year'), "TRUNC({col}, 'YYYY')", 'P1Y'),
     )
 
+    @classmethod
+    def epoch_to_dttm(cls):
+        return 'from_unixtime({col})'
+
     @classmethod
     def convert_dttm(cls, target_type, dttm):
         tt = target_type.upper()