title: How can I set comparison datetime in validation laravel?
body: <p>I use laravel 5.3</p>
  
  <p>My laravel validation like this :</p>
  
  <pre><code>&lt;?php
  namespace App\Http\Requests;
  use Illuminate\Foundation\Http\FormRequest;
  class AddCartRequest extends FormRequest
  {
      public function rules()
      {
          return [
              'id'=&gt;'required|numeric',
              ...
              'request_date'=&gt;'required'
          ];
      }
  }
  </code></pre>
  
  <p>If value of request_date is </p>
  
  <blockquote>
    <p>01-08-2017 13:00:00</p>
  </blockquote>
  
  <p>I want to add condition like this :</p>
  
  <p>If request date &lt; now + 5 hour, then it will display message : "Request date must be larger 5 hours from now"</p>
  
  <p>How can I do it?</p>