diff --git a/source/_integrations/gtfs.markdown b/source/_integrations/gtfs.markdown
index d2e4a0583e0..a504d838eab 100644
--- a/source/_integrations/gtfs.markdown
+++ b/source/_integrations/gtfs.markdown
@@ -62,7 +62,7 @@ name:
   default: GTFS Sensor
   type: string
 offset:
-  description: A minimum delay to look for. If a departure is in less time than `offset`, it will be ignored.
+  description: "A minimum delay to look for. If a departure is in less time than `offset`, it will be ignored. Set the value either in seconds (`integer`), or using one of these `time` formats: `offset: 'HH:MM:SS'`, `offset: 'HH:MM'`. "
   required: false
   default: 0
   type: [integer, time]