Global Default Timezone Unexpected behaviour

[mxmtsk]

Package

Panel builder

Package Version

v4.2.2

How can we help you?

My Panel is scoped to an event, where everyone can have a different timezone, therefore I have created a Middleware that sets the Timezone globally. However, I get unexpected behavior and I'm unsure if this is a misunderstanding on my side or an actual bug that I should report.

My config/app.phptimezone is set to UTC

'timezone' => 'UTC',

My Middleware:

        if (session('selected_event_id')) {
            $event = Event::find(session('selected_event_id'));

            if ($event && $event->timezone) {
                $timezone = $event->timezone;

                if (in_array($timezone, \DateTimeZone::listIdentifiers(), true)) {
                    FilamentTimezone::set($timezone);
                } else {
                    Log::warning("Invalid timezone value for event {$event->id}: {$timezone}");
                }
            }
        }

In my Panel I added the middleware in the correct place (I believe):

            ->middleware([
                EncryptCookies::class,
                AddQueuedCookiesToResponse::class,
                StartSession::class,
                SetEventTimezone::class, // here
                AuthenticateSession::class,
                ShareErrorsFromSession::class,
                VerifyCsrfToken::class,
                SubstituteBindings::class,
                DisableBladeIconComponents::class,
                DispatchServingFilamentEvent::class,
                RequireTenantMiddleware::class,
            ])

For Table Columns and Infolist, the timezone value is ignored completely, I have to manually add timezone for it to convert my UTC dates to the timezone eg.

                TextColumn::make('time')
                    ->label('Time')
                    ->timezone($timezone) // here
                    ->time("H:i")
                    ->sortable()
                    ->toggleable(),

Based on my understanding of the documentation here, it should not be neccessary.

In Forms, it is picked up correctly, displaying the time in the correct timezone, however when I change it (eg. to 05:00, it stores in the database as 05:00, and not as UTC. If I refresh the page, then the date displayes incorrectly because it calculates the date to the Timezone. Happening with both the native and not native time pickers. This is obviously very confusing for users

This also contradicts what is set in the documentation here by my understanding.

I feel like I'm missing something here but happy to open a bug report, if I understood and implemented it correctly otherwise.