title: Using datetime format via Yii2-formatter
body: <p>I have problem with using Yii2-formatter. My config 
  is</p>
  
  <pre><code>    'formatter' =&gt; [
          'class' =&gt; 'yii\i18n\Formatter',
          'defaultTimeZone' =&gt; 'Asia/Novosibirsk',
          'timeZone' =&gt; 'Asia/Novosibirsk',
          'currencyCode' =&gt; 'RUB',
          'locale' =&gt; 'ru_RU',
          'dateFormat' =&gt; 'php:d.m.Y',
          'timeFormat' =&gt; 'php: H:i:s',
          'datetimeFormat' =&gt; 'php:d.m.Y H:i',
      ],
  </code></pre>
  
  <p>When I try</p>
  
  <pre><code>echo Yii::$app-&gt;formatter-&gt;asDateTime('15-06-2014 14:10:10');
  </code></pre>
  
  <p>it work correct - show 15.06.2014 14:10.
  When I try</p>
  
  <pre><code>echo Yii::$app-&gt;formatter-&gt;asDateTime('15-06-2015 14:10:10');
  </code></pre>
  
  <p>it work not correct - show 15.06.2015 15:10. When I set year 2016, it works not corrected too. I try to</p>
  
  <pre><code>echo date('d.m.Y H:i', strtotime('15-06-2015 14:10:10'))
  </code></pre>
  
  <p>And it works correct for 2015 and 2016 years, PHP-config is right. Could anyone help, what's wrong with my code?</p>