Display Time in UTC as well as the creator's or viewer's local time.
Add GMT (UTC) to the date and time displayed next to the sessions. We are giving exams across multiple time zones and this has been confusing to the Applicants and VEs. So, in addition to displaying the time zone in term's of the viewer's computer settings, show the creator and users the time in UTC. If viewers don't know what UTC means, they can always Google their local time in terms of UTC and won't have to do any mental math to figure out what time that is in their time zone. The confusion has been reduced with the common practice of putting the UTC time in the Session Description.