Issue Summary

Burndown Chart is not showing correct Date.

Steps to Reproduce

Environment

• Reproduced Jira Software 8.9.1 or 8.12 
  • Not reproduced 8.7.0, 8.8.1
• Default user time zone: System default: (GMT+09:00) Tokyo

Steps to Reproduce

1. Create new sample scram project
   • Projects > Create project > Create sample data > Scrum software development
2. Board > Configure > Estimation
   • Estimation Statistic: Original Time Estimate
3. Select any of issues other than sub-task in Active sprints
4. Add Estimate time
   

Expected Results

Burndown Chart shows exact date time depends on user time zone.

Actual Results

• Work Log shows correct time (17/Sep/20 6:11 PM)
  
• Burndown Chart shows wrong time (17/Sep/20 3:11 AM)
  

Workaround

Currently there is no known workaround for this behavior. A workaround will be added here when available