Display jobs duration time

[mariusz-jachimowicz-83]

We could display this info in dashboard - like apache does. 2 blocks - running jobs and finished jobs - with info start-time, finish-time, duration, job-name, job-id. It's common that people want this info.

In the dashboard should I display job duration as a min-duration / max-duration where min-duration = min value from array of :seal-output timestamp - :signal-ready timestamp values max-duration = max value from array of :seal-output timestamp - :signal-ready timestamp values to show min and max diff for processing a job, right?