title: Flutter: Get Wrong days of the week
body: <p>from Monday - Thursday, I get the right days, but from Friday, I get the wrong days. Why?</p>
  <p>Code example:</p>
  <pre><code>Text(DateFormat('EEEE').format(DateTime(DateTime.friday))),
  </code></pre>
  <p>And i get Saturday. Is that a bug?</p>