How do I select the appropriate time zone for my 24/7 Scheduler?

When you click on a 24/7 Scheduler Channel, and then click on "SETTINGS", you can choose the timezone of the Scheduler. 

The timezone is the programming timezone you are programming the schedule in. In most cases your current timezone. 

For example: If you set your Channel timezone to UTC then the Scheduler in the Media Cloud is displayed based on UTC timezone.

If you schedule a video to be played at 7pm UTC then that video will be played at 7pm UTC which means 2pm EST/11am PST.