'How to get queued time duration of Airflow task?

I'm looking for a way to get the queued time duration of an Airflow task.

I'm running on all tasks of a DAG, but if its state is Queued - there is no start_date and therefore I can't tell how long it is in a Queued state.

Does anyone know a way ?

Solution 1:^[1]

I have an idea for a rough queued time, but it's only possible after the task has actually started.

You can find the queued time by substracting the end_date of the "Parent" task from the start_date of your desired task once it started

If there's no "parent" task, you can might use the DAG start_date

Notes:

Took into consideration the downstream task to start after ALL upstream tasks done, if your rule is different, please adapt the logic
If there's more than one upstream task, use the latest end_date

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Solution	Source
Solution 1	Saar Levy