Description of problem:

Sorting PipelineRuns by duration sorts strings, not actual duration. So for example PipelineRun with duration "5 minutes 36 seconds" is sorted above "40 seconds" and that is above "2 minutes 44 seconds".

Prerequisites (if any, like setup, operators/versions):

Red Hat OpenShift Pipelines - 5.0.5-369 provided by Red Hat
OpenShift version 4.14.33.labe

Steps to Reproduce

1. Have a multiple PipelineRuns running with wide range of durations
2. Go to https://console-openshift-console..../pipelines/all-namespaces/pipeline-runs?orderBy=desc&sortBy=Duration
    

   Actual results:

Looks like durations are sorted in some strange way.

See:

Also looks like newly added PRs are added at the end of the list? Not sure about it.

Expected results:

Durations are sorted by elapsed number of seconds or so.

Reproducibility (Always/Intermittent/Only Once):

Always