isDateStart

   <b:if cond='data:post.isDateStart'>
          <b:if cond='data:post.isFirstPost == &quot;false&quot;'>
            &lt;/div&gt;&lt;/div&gt;
          </b:if>
        </b:if>
        <b:if cond='data:post.isDateStart'>
          &lt;div class=&quot;date-outer&quot;&gt;
        </b:if>
        <b:if cond='data:post.dateHeader'>
          <h2 class='date-header'><span><data:post.dateHeader/></span></h2>
        </b:if>
        <b:if cond='data:post.isDateStart'>
          &lt;div class=&quot;date-posts&quot;&gt;
        </b:if>