jonathanrainer commented on issue #30642:
URL: https://github.com/apache/airflow/issues/30642#issuecomment-1509071042

   <img width="761" alt="Screenshot 2023-04-14 at 19 34 15" 
src="https://user-images.githubusercontent.com/1529660/232128367-3e188e7e-95cf-4d33-83c8-ff960938d7d3.png";>
   
   So here's an example of the kind of thing we see, this DAG is set up to run 
every three hours, and as we can see from the data interval it should start 
running at some point after 2pm BST. Now if we look into the actual tasks we 
can see in the screenshot below that the first task, which has one downstream, 
which further has everything else in the DAG as a downstream starts at 14:00:14 
BST and ran for around 17 minutes which is in-line with what we'd expect.
   
   ![Screenshot 2023-04-14 at 19 36 
29](https://user-images.githubusercontent.com/1529660/232128936-107da204-2b2c-4e5d-8027-ac6effedfad3.png)
   
   However if we look again at the first screenshot it reports that the DAG Run 
started at 15:57:15 BST, which is clearly wrong. Now curiously, the times 
reported by the DAG Run are the same as the start and end times of the last 
task in the DAG to run chronologically. Could it possibly be that the start and 
end time are both getting updated when it should only be the end time?


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