scheduling-remote/src/components/Scheduling.tsx

@@ -477,10 +477,11 @@ export function ScheduleExperiment({ user, onBack }: { user: User; onBack: () =>
                 let newScheduled = { ...prev }
 
                 const clampToReasonableHours = (d: Date) => {
+                    // Allow full 24 hours (midnight to midnight)
                     const min = new Date(d)
-                    min.setHours(5, 0, 0, 0)
+                    min.setHours(0, 0, 0, 0)
                     const max = new Date(d)
-                    max.setHours(23, 0, 0, 0)
+                    max.setHours(23, 59, 59, 999)
                     const t = d.getTime()
                     return new Date(Math.min(Math.max(t, min.getTime()), max.getTime()))
                 }