Update strings.json

homeassistant/components/timer/strings.json

@@ -37,7 +37,7 @@
         "step": {
           "confirm": {
             "title": "The timer start service duration parameter is being removed",
-            "description": "The timer service `timer.start` optional duration parameter is being removed and use of it has been detected.\n\nPlease remove the use of this service from your automations and scripts and select **submit** to close this issue."
+            "description": "The timer service `timer.start` optional duration parameter is being removed and use of it has been detected. To change the duration please create a new timer.\n\nPlease remove the use of this service from your automations and scripts and select **submit** to close this issue."
           }
         }
       }