In order to produce a proper burndown chart, we need the actual Sprint start date / time, not the scheduled sprint start date.  In Jira, when you create a sprint, you enter a start and end date and time which currently is being provided by FiveTran.  However, we need to know the date / time that the user actually clicks the start sprint button as we want to ensure our burndown properly reflects the number of issues and size of issues when the sprint began as there is often some last minute shuffling of issues in the hours before the sprint starts, especially when a prior sprint did not complete 100% successfully.  Jira does track these timestamps and uses them for their own burndown charts, which can't be accurately reproduced without this data.  The actual sprint start date is most important to us, but there is an actual date/time that the user closed or ended the sprint as well which should be included for consistency.