Timezones missing from initial Team Calendar setup Cloud

Summary

Upon initial Team Calendars  for Cloud setup, and navigate to the Calendars page for the first time (http://BASE-URL/calendar/mycalendar.action) you are prompted to select a timezone:

However, it appears that the list of timezones here is much smaller than what is available when changing your profile timezone, or selecting one when creating a new calendar.

For example, I am not able to see any Alaska or Hawaii timezones. (i.e. GMT-9, GMT-10)

Environment

• Confluence Cloud
• Team Calendars Cloud

Steps to Reproduce

• Install Team Calendars from Find Add-ons.
• Navigate to Calendars menu (http://BASE-URL/calendar/mycalendar.action)
• You'll be prompted to select a timezone. See attachment.

Expected Results
All timezones available to Confluence users should be listed here.

Actual Results
The list is a smaller list than what is available.

Workaround

Select a timezone.
Navigate to your User Profile and change the timezone there (under Settings)
Additionally, when creating a new calendar, select the desired timezone.