Apache Airflow version

3.1.3

If "Other Airflow 2/3 version" selected, which one?

No response

What happened?

When a task is in running state, the screen that shows past/current tasks runs duration doesn't update. It is useful to get an idea how it's doing compared to previous run or get an idea of when it will finish.

What you think should happen instead?

The graph should update to reflect the current duration of the task, similar to the DAG Run graph.

How to reproduce

Here's a simple DAG and a video to demonstrate the steps for reproduction.

import time
import pendulum
from airflow.sdk import (
    task,
    DAG,
)

with DAG(
    dag_id="test",
    schedule="@daily",
    catchup=True,
    start_date=pendulum.datetime(2025, 11, 1),
    max_active_runs=1,
    is_paused_upon_creation=True,
) as dag:

    @task()
    def sleep_task():
        time.sleep(10)

    sleep_task()

Operating System

Debian GNU/Linux 12 (bookworm)

Versions of Apache Airflow Providers

apache-airflow-providers-standard==1.9.1

Deployment

Docker-Compose

Deployment details

No response

Anything else?

This is just a hint... I wonder if it's related to the fact that the running task doesn't update its duration while it's running. It's only defined once the task stops...

Are you willing to submit PR?

• Yes I am willing to submit a PR!

Code of Conduct

• I agree to follow this project's Code of Conduct