Middleware that extends Mcamara\Laravel-localization package functionalities. Set the locale LC_TIME for Carbon\Carbon to set the correctly datetime for each selected language. See comment for further details.

LocalizeDatetime.php

<?php

namespace App\Http\Middleware;

use Closure;
use Carbon\Carbon;
use Mcamara\LaravelLocalization\Middleware\LaravelLocalizationMiddlewareBase;

class LocalizeDatetime extends LaravelLocalizationMiddlewareBase
{
    /**
     * Handle an incoming request.
     *
     * @param  \Illuminate\Http\Request  $request
     * @param  \Closure  $next
     * @return mixed
     */
    public function handle($request, Closure $next)
    {
        // If the URL of the request is in exceptions.
        if ($this->shouldIgnore($request)) {
            return $next($request);
        }

        Carbon::setLocale(app('laravellocalization')->getCurrentLocale());

        return $next($request);
    }
}

How to use it:

This example use mcamara\laravel-localization package.

in your App\Http\Kernel.php add this line to the $routeMiddleware array

protected $routeMiddleware = [
    'auth' => \Illuminate\Auth\Middleware\Authenticate::class,
    'auth.basic' => \Illuminate\Auth\Middleware\AuthenticateWithBasicAuth::class,
    'bindings' => \Illuminate\Routing\Middleware\SubstituteBindings::class,
    'can' => \Illuminate\Auth\Middleware\Authorize::class,
    'guest' => \App\Http\Middleware\RedirectIfAuthenticated::class,
    'throttle' => \Illuminate\Routing\Middleware\ThrottleRequests::class,
    'localize' => \Mcamara\LaravelLocalization\Middleware\LaravelLocalizationRoutes::class,
    'localizationRedirect' => \Mcamara\LaravelLocalization\Middleware\LaravelLocalizationRedirectFilter::class,
    'localeSessionRedirect' => \Mcamara\LaravelLocalization\Middleware\LocaleSessionRedirect::class,
    'localeViewPath' => \Mcamara\LaravelLocalization\Middleware\LaravelLocalizationViewPath::class,
    'localizeDatetime' => \App\Http\Middleware\LocalizeDatetime::class,
];

and finally in your routes\web.php

Route::group([
    'prefix' => Localization::setLocale(),
    'middleware' => [
        'localize',
        'localeSessionRedirect',
        'localizationRedirect',
        'localeViewPath',
        'localizeDatetime',
    ]
], function()
{
    /** ADD ALL LOCALIZED ROUTES INSIDE THIS GROUP **/
    Route::get('/', function () {
        return view('welcome');
    });

    /** your code here */
});