Applies to folder date (America/New_York). The banner counts down to the End time (“Request window closes in …”). Start still controls when the request window opens for B/N badges and phase logic. Click Save Window after changes. On the boards page, Schedule uses this clock; Pre-Show shows the same close countdown until the end time passes.
Show state (same as boards page; visible to everyone). Post Show turns on the full-screen “show ended” on the boards URL. Use Schedule, Pre-Show, or During Show here or on boards to turn that screen off.