laravel under construction accessed by url or date to launch

gistfile1.php

//em construcao
date_default_timezone_set("America/Sao_Paulo");
if (Session::has('access') or (time() > mktime(0, 0, 1, 8, 23, 2014))) {
    Route::get('/', 'HomeController@index');
} else {
    Route::get('/', function () {
        return View::make('underConstruction');
    });
}
Route::get('/your-url-here', function () {
    Session::put('access', true);

    return Redirect::to('/');
});