diff --git a/engine.go b/engine.go
index 8ff29df4..b76d4c6d 100644
--- a/engine.go
+++ b/engine.go
@@ -1621,7 +1621,7 @@ func (engine *Engine) formatTime(sqlTypeName string, t time.Time) (v interface{}
 		v = s[11:19]
 	case core.Date:
 		v = t.Format("2006-01-02")
-	case core.DateTime, core.TimeStamp, core.Varchar:
+	case core.DateTime, core.TimeStamp, core.Varchar: // !DarthPestilane! format time when sqlTypeName is core.Varchar.
 		v = t.Format("2006-01-02 15:04:05")
 	case core.TimeStampz:
 		if engine.dialect.DBType() == core.MSSQL {