Q. When I create a schedule for an Azure Automation what time zone is it using?
A. When you're setting a schedule for an Azure Automation via the portal, the time zone you see is based on the local browser. Also when configuring in PowerShell, the local time zone is used.
However the actual time is stored as UTC (which is the time zone used for all runbook hosts), so if you look at the time in the runbook you would see the time as a UTC time.