klsnreddy opened a new issue #8876:
URL: https://github.com/apache/airflow/issues/8876


   **Description**
   Provide option to time delta on upstream tasks in TimeDeltaSensor. Currently 
it adds delta to the schedule end time, irrespective of where the 
TimeDeltaSensor is in DAG.
   
   **Use case / motivation**
   We have a requirement of sending an email after 30 mins of previous task 
completion, but TimeDeltaSensor only waits till 30 mins after schedule end 
time, and by the the time we reach sensor if that delta + end time is less then 
current time, it will continue the execution with out waiting. Even this 
feature would be useful when working with eventual consistent system, where you 
want to wait for couple of minutes before proceeding further.


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