Fix #1851 Update all Carbon classes on Laravel locale change

src/Carbon/Laravel/ServiceProvider.php

@@ -3,9 +3,13 @@
 namespace Carbon\Laravel;
 
 use Carbon\Carbon;
+use Carbon\CarbonImmutable;
 use Illuminate\Contracts\Events\Dispatcher as DispatcherContract;
 use Illuminate\Events\Dispatcher;
 use Illuminate\Events\EventDispatcher;
+use Illuminate\Support\Carbon as IlluminateCarbon;
+use Illuminate\Support\Facades\Date;
+use Throwable;
 
 class ServiceProvider extends \Illuminate\Support\ServiceProvider
 {
@@ -30,7 +34,24 @@ public function boot()
     public function updateLocale()
     {
         $app = $this->app && method_exists($this->app, 'getLocale') ? $this->app : app('translator');
-        Carbon::setLocale($app->getLocale());
+        $locale = $app->getLocale();
+        Carbon::setLocale($locale);
+        CarbonImmutable::setLocale($locale);
+
+        // @codeCoverageIgnoreStart
+        if (class_exists(IlluminateCarbon::class)) {
+            IlluminateCarbon::setLocale($locale);
+        }
+
+        if (class_exists(Date::class)) {
+            try {
+                $root = Date::getFacadeRoot();
+                $root->setLocale($locale);
+            } catch (Throwable $e) {
+                // Non Carbon class in use in Date facade
+            }
+        }
+        // @codeCoverageIgnoreEnd
     }
 
     public function register()