In a plan, sprints end one day sooner than the actual end date in Jira

Issue Summary

When setting up a sprint to end on March 31th in the board, the plan in Advanced Roadmaps will show this sprint as ending on March 30th.

Steps to Reproduce

1. Create a sprint in a board. Set its end date and time.
2. Create a plan in Advanced Roadmaps to include that sprint.
3. Group the plan by Team or Sprint, then click on the sprint box to reveal the sprint fly-out.

Expected Results

The sprint end date should be the same as the sprint end date in Jira.

Actual Results

The sprint end date in the plan is shown as one day sooner than the sprint end date in Jira.

Workaround

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