Using fields Target Start and Target End displays one day off in Confluence calendar

Issue Summary

This is reproducible on Data Center: yes

Steps to Reproduce

1. Use the Target Start and Target End dates in a Plan to set these two date/time points on an issue.  
2. In Confluence team calendar, click Add Event
   1. Event Type: Jira Issue Dates
   2. Display: JQL (enter JQL to select an issue with a Target Start and Target End date that is set)
   3. Date Range: Start - Target start / End - Target end

Expected Results

The Issue shows up on the calendar with the correct dates

Actual Results

The issue shows up on the calendar with each value at one day prior.  Example = Issue shows up on calendar from Aug 12-16 but Jira issue shows Aug 13-17.

The root cause seems to be that the field TYPE is not a date picker field but a special Advanced Roadmaps eponymous field.  

Workaround

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

Workaround not involving this field: Use a script, automation, or app to copy the Target Start and Target End fields into a date picker field then use the date picker field in the calendar.