Add timezone aliases

app/Models/Airport.php

@@ -2,9 +2,7 @@
 
 namespace App\Models;
 
-use App\Models\Observers\AirportObserver;
 use Illuminate\Notifications\Notifiable;
-use Log;
 
 /**
  * Class Airport
@@ -88,4 +86,12 @@ class Airport extends BaseModel
     {
         return $this->icao . ' - ' . $this->name;
     }
+
+    /**
+     * @return string
+     */
+    public function getTimezoneAttribute(): string
+    {
+        return $this->tz;
+    }
 }

app/Models/User.php

@@ -92,6 +92,15 @@ class User extends Authenticatable
         return $this->getPilotIdAttribute();
     }
 
+    /**
+     * Return the timezone
+     * @return mixed
+     */
+    public function getTzAttribute()
+    {
+        return $this->timezone;
+    }
+
     /**
      * @param mixed $size Size of the gravatar, in pixels
      * @return string