修正

index.html

                     <!--記事一覧 新着情報-->
                     <div id="article_new" style="overflow:hidden;height: 181px;">
                       <span class="block_line">
-                        <span class="block_line_date2">2019.06.27</span>
+                        <span class="block_line_date2">2019.06.26</span>
                         <span class="block_line_char2">
                           <a href="fourth/education/pdf/20190627_school_concept_report.pdf"
                             target="_blank">「北方学園構想基本計画」が完成しました</a>

second/Notices.html

           </div>
           <span id="template_article_block">
             <div class="list_notices">
-              <span class="list_notices_date">2019.06.27</span>
+              <span class="list_notices_date">2019.06.26</span>
               <span class="list_notices_text">
                 <a href="../fourth/education/pdf/20190627_school_concept_report.pdf"
                   target="_blank">「北方学園構想基本計画」が完成しました</a>