In Jira you have many places where a date and time is printed. If possible, this is displayed more readable for humans. For example:

But you can also always output a fixed date. If you don't want to output a human  readable date, you can also output a fixed date. You only have to do the following:

  1. Shut down your JIRA applications
  2. Navigate to $JIRA_HOME
  3. Edit the file: (Create it it not exist)
  4. Add the following line: = false

5. Save the file

6. Restart your JIRA applications

Then it outputs always this format: