title: DateTime, String comparison
body: <p>I need to compare incoming strings with the date and time from the DS1307 RTC module. I am going to trigger an event if the certain time from the strings are reached.</p>
  
  <p>I've tried using convert to integer but it does not work.</p>
  
  <pre><code>String now_int = rtc.now();
  </code></pre>
  
  <p>Error says <code>conversion from DateTime to non-scalar type String is requested</code></p>
  
  <p>How can I compare datetime with a string?</p>