[ZRH-2025] Small adjustment

Author: romanoroth

data/events/2025/zurich/main.yml

@@ -415,7 +415,7 @@ program:
 - title: "Open Space Track 2"
   type: open-space
   date: 2025-03-13
-  start_time: '16:40'
+  start_time: '16:00'
   end_time: '16:40'
 
 - title: "Open Space Track 3"