Our sprints are 3 weeks length, starting on a Tuesday and ending on third week Monday.
Sprint Planning->Week1-> Tuesday - Thursday
Sprint Execution->Week1-Friday-Week 3 Monday
If I put Sprint 1 Tuesday as my 1st day of the sprint then I won't have my sprint backlog ready by week1 Thursday so the burndown chart will look like I added additional scope and it won't reflect the true data. How do I handle the start date in Jira so the burn down reflects the true scope?