title: What is the equivalent format string of DateTimeFormatter.ISO_OFFSET_DATE_TIME?
body: <p>Do we know if there is an equivalent format string that outputs the same result as <code>DateTimeFormatter.ISO_OFFSET_DATE_TIME</code>?</p>
  
  <p>i.e.</p>
  
  <pre><code>ZonedDateTime dateTime = ZonedDateTime.now();
  System.out.println(dateTime.format(DateTimeFormatter.ofPattern(pattern)));
  System.out.println(dateTime.format(DateTimeFormatter.ISO_OFFSET_DATE_TIME));
  </code></pre>
  
  <p>would output the same</p>