Total Execution time for multi project pipeline

I have configured multiple project pipeline in Gitlab CI/CD. When i see the execution time of pipeline it is displaying only parent pipeline execution time. I want to see total pipeline execution time including time taken for completing downstream jobs in parent pipeline.
I am using below project trigger in gitlab-ci.yml file.

branch: <branch_name>
strategy: depend

Can some one please help in displaying total execution time taken by a multi project pipeline.