You don't. The created and updated fields are a record of when the issue was created and when it was last updated. It's a nonsense to edit them.
If you want to record something like "incident date/time" for retrospective logging of issues, then use a custom field to do it
No, don't do that, it's completely the wrong approach. I'm sorry I missed the original comment - I suspect it was made during one of Answers "don't send any email" failure periods. The comment changed the scope of the question from "I want the ability to destroy information in my system" to "I'd like to display the information differently", which makes much more sense/ To get dates to show as absolutes all the time, change the setting in the look and feel page - look for "date and time" on https://confluence.atlassian.com/display/JIRA/Customizing+the+Look+and+Feel
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