main problem is, that you want the date, the transition was executed first. I don't think that you can get this date without a custom field.
Do you have the Script Runner Plugin? If so, here's another solution for your problem (but also with a custom field): https://answers.atlassian.com/questions/250963
Connect with like-minded Atlassian users at free events near you!Find a group
Connect with like-minded Atlassian users at free events near you!
Unfortunately there are no AUG chapters near you at the moment.Start an AUG
We're bringing product updates and pro tips on teamwork to ten cities around the world.Save your spot