is there a timezone variable in Adobe?

Each suite is configured with a single time zone... all data collected in that suite is based on that timezone... if you are running an international site, you can create virtual reporting suites using different time zones from your main.

If you just want to see which time zone is configured, this is in your Admin area:

Admin > Report Suites

(choose report suite)

Edit Settings > General > General Account Settings

If you need to see the configuration of a VRS, then you need to go to:

Components > Virtual Report Suites

(choose report suite)

time zone is on the first page of settings