code: public String formatDurationUnrounded(Date then)
     {
        Duration duration = approximateDuration(then);
        return formatDurationUnrounded(duration);
     }
docs: Format the given {@link Date} and return a non-relative (not decorated with past or future tense) {@link String}
  for the approximate duration of its difference between the reference {@link Date}. Rounding rules are ignored. If
  the given {@link Date} is <code>null</code>, the current value of {@link System#currentTimeMillis()} will be used
  instead.
  <p>
  
  @param then the date to be formatted
  @return A formatted string of the given {@link Date}