Scroll down and pick your time zone. For example, Chicago is GMT-6. Click on the blue GMT-6.
When you click on that link, you'll see the calendar for the entire conference in your time zone.
If you are a Google calendar user, you can add an individual event to your calendar or the entire calendar.
When you select an event, there is an individual link to the session.
Click on that and you may have to install a launcher to go into that session or click on the .collab file that is downloaded to your default downloads folder. You don't have to install the launcher every time you access a session, but you do need to open a .collab file with every session. It shouldn't take a great deal time to download or launch.