In Brazil, we won't have daylight saving in 2019 and it may impact our products.
On October 20, our timezone in Brazil would change to GMT -2, but in 2019 it won't happen, so the timezone in Jira and Confluence may change and affect Due Dates, SLAs, Team calendar among other things.
Any field tied to a timezone change will be affected.
It may also affect SLA for Service Desk issues.
On October 20, it should keep GMT -3 for Sao Paulo's timezone.
It will show the wrong information because the timezone will be GMT -2.
Change the timezone manually to GMT -3 using another country's timezone, like Recife or Argentina (Buenos Aires).