Hello,
Unfortunately our Scheduled Tasks implementation doesn't support the "Synchronize across time zones" option. We will analyze this new feature and maybe we will implement it in a future version of Advanced Installer.
Until then, if you need to create a Scheduled Task with this option enabled, you could create a scheduled task using an XML file added in "Files and Folders" page then you can use a custom action which will launch the "Schtasks.exe" tool with a proper command line.
The custom action should be added after "Install Execution Stage -> Add Resources" actions group and should run as deferred with no impersonation.
Please take a look on the
Time Trigger Example (XML) article.
Best regards,
Sorin