diff --git a/src/TicketingServiceProvider.php b/src/TicketingServiceProvider.php
index 1673d34..1f52c25 100644
--- a/src/TicketingServiceProvider.php
+++ b/src/TicketingServiceProvider.php
@@ -69,6 +69,12 @@ class TicketingServiceProvider extends ServiceProvider
     {
         $this->callAfterResolving(Schedule::class, function (Schedule $schedule) {
             $schedule->command('ticketing:auto-close')
+                // …AND THE CLOCK IS THE SCHOOL'S ([dashboard-shell] #3144).
+                // ScheduleStagger decides the MINUTE; `dailyAt()` on its own is
+                // read against config('app.timezone'), which is UTC on every box
+                // here — so 00:12 was landing at 17:12 the previous afternoon,
+                // i.e. the nightly sweep ran in the middle of the school day.
+                ->timezone(\App\Support\Timezone::organisation())
                 ->dailyAt(\App\Support\Ops\ScheduleStagger::dailyAt('ticketing:auto-close'));
         });
     }