setting the timezone for a user's session on login instead of every request checking and setting

src/app/Listeners/SuccessfulLogin.php

@@ -0,0 +1,33 @@
+<?php
+
+namespace App\Listeners;
+
+use Illuminate\Auth\Events\Login;
+use Illuminate\Contracts\Queue\ShouldQueue;
+use Illuminate\Queue\InteractsWithQueue;
+use Illuminate\Support\Facades\Session;
+
+class SuccessfulLogin
+{
+    /**
+     * Create the event listener.
+     *
+     * @return void
+     */
+    public function __construct()
+    {
+        //
+    }
+
+    /**
+     * Handle the event.
+     *
+     * @param  \Illuminate\Auth\Events\Login  $event
+     *
+     * @return void
+     */
+    public function handle(Login $event): void
+    {
+        Session::put('timezone_name', $event->user->timezone_name);
+    }
+}

src/app/Listeners/SuccessfulLogout.php

@@ -0,0 +1,32 @@
+<?php
+
+namespace App\Listeners;
+
+use Illuminate\Auth\Events\Logout;
+use Illuminate\Contracts\Queue\ShouldQueue;
+use Illuminate\Queue\InteractsWithQueue;
+use Illuminate\Support\Facades\Session;
+
+class SuccessfulLogout
+{
+    /**
+     * Create the event listener.
+     *
+     * @return void
+     */
+    public function __construct()
+    {
+        //
+    }
+
+    /**
+     * Handle the event.
+     *
+     * @param  \Illuminate\Auth\Events\Logout  $event
+     * @return void
+     */
+    public function handle(Logout $event)
+    {
+        Session::forget('timezone_name');
+    }
+}